1625-0022 Stat/Authority

CFR-2009-title46-vol2-part69.pdf

Application for Tonnage Measurement of Vessels

1625-0022 Stat/Authority

OMB: 1625-0022

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Pt. 69

46 CFR Ch. I (10–1–09 Edition)

person is primarily engaged in leasing
or other financing transactions.
(b) In addition to the events in
§ 67.167(c)(1) through (c)(9) of this chapter, a Certificate of Documentation together with a coastwise endorsement in
effect on or after February 4, 2004, and
before August 9, 2004, becomes invalid
when—
(1) The demise charter expires or is
transferred to another charterer;
(2) The citizenship of the charterer or
sub-charterer changes to the extent
that they are no longer qualified for a
coastwise endorsement;
(3) Neither the person that owns the
vessel, nor the parent of that person,
nor any subsidiary of the parent of that
person is primarily engaged in leasing
or other financing transactions;
(4) The majority of the aggregate revenues of at least one of the following is
derived from the operation or management of vessels:
(i) The person that owns the vessel.
(ii) The parent of the person that
owns the vessel.
(iii) The group of which the person
that owns the vessel is a member; or
(5) At least one of the following is
primarily engaged in the operation or
management of commercial, foreignflag vessels used for the carriage of
cargo for parties unrelated to the vessel’s owner or charterer:
(i) The person that owns the vessel.
(ii) The parent of the person that
owns the vessel.
(iii) The group of which the person
that owns the vessel is a member.
(c) When the coastwise endorsement
for a vessel to which this subpart applies becomes invalid under paragraph
(a)(1) or (b)(1) of this section, the vessel
remains eligible for documentation
under this subpart provided it is a vessel to which § 68.100(b) or (c) applies.

69.9 Definitions.
69.11 Determining the measurement system
or systems for a particular vessel.
69.13 Deviating from the provisions of a
measurement system.
69.15 Authorized measurement organizations.
69.17 Application for measurement services.
69.19 Remeasurement and adjustment of
tonnage.
69.21 Right of appeal.
69.23 Fees.
69.25 Penalties.
69.27 Delegation of authority to measure
vessels.
69.29 OMB control numbers assigned under
the Paperwork Reduction Act.

Subpart B—Convention Measurement
System
69.51 Purpose.
69.53 Definitions.
69.55 Application for measurement services.
69.57 Gross tonnage.
69.59 Enclosed spaces.
69.61 Excluded spaces.
69.63 Net tonnage.
69.65 Calculation of volumes.
69.67 Marking of cargo spaces.
69.69 Issuance of an International Tonnage
Certificate (1969).
69.71 Change of net tonnage.
69.73 Variance from the prescribed method
of measurement.
69.75 Figures.

Subpart C—Standard Measurement System
69.101 Purpose.
69.103 Definitions.
69.105 Application for measurement services.
69.107 Gross and net tonnages.
69.109 Under-deck tonnage.
69.111 Between-deck tonnage.
69.113 Superstructure tonnage.
69.115 Excess hatchway tonnage.
69.117 Spaces exempt from inclusion in
gross tonnage.
69.119 Spaces deducted from gross tonnage.
69.121 Engine room deduction.
69.123 Figures.

Subpart D—Dual Measurement System

PART 69—MEASUREMENT OF
VESSELS

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Subpart A—General
Sec.
69.1 Purpose.
69.3 Applicability.
69.5 Vessels required or eligible to be measured.
69.7 Vessels transiting the Panama and
Suez Canals.

69.151 Purpose.
69.153 Application of other laws.
69.155 Measurement requirements.
69.157 Definitions.
69.159 Application for measurement services.
69.161 Gross and net tonnages.
69.163 Under-deck tonnage.
69.165 Between-deck tonnage.
69.167 Superstructure tonnage.
69.169 Spaces exempt from inclusion in
gross tonnage.

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Coast Guard, Dept. of Homeland Security
69.171 When the tonnage mark is considered
submerged.
69.173 Tonnage assignments for vessels with
only one deck.
69.175 Tonnage assignments for vessels with
a second deck.
69.177 Markings.
69.179 Certification of markings.
69.181 Locating the line of the second deck.
69.183 Figures.

Subpart E—Simplified Measurement System
69.201 Purpose.
69.203 Definitions.
69.205 Application for measurement services.
69.207 Measurements.
69.209 Calculation of tonnages.
AUTHORITY: 46 U.S.C. 2301, 14103; Department of Homeland Security Delegation No.
0170.1.
SOURCE: CGD 87–015b, 54 FR 37657, Sept. 12,
1989, unless otherwise noted.

Subpart A—General

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§ 69.1

Purpose.

This part implements legislation
concerning the measurement of vessels
to determine their tonnage (part J of 46
U.S.C. subtitle II). Tonnages are required before a vessel may be documented as a vessel of the United
States. Also, tonnages are used to
apply commercial vessel safety regulations based on tonnage, to meet the requirements of the International Convention on Tonnage Measurement of
Ships, 1969, and to determine Federal
and State regulatory fees and private
operational charges based on tonnage.
Tonnages are determined by the physical measurement of a vessel (Convention, Standard, and Dual Measurement
Systems) or by application of a formula based on the vessel’s dimensions
provided by the owner (Simplified
Measurement System). This part indicates the particular measurement system or systems under which the vessel
is required or eligible to be measured,
describes the application and measurement procedures for each system, identifies the organizations authorized to
measure vessels under this part, and
provides for the appeal of measurement
organizations’ decisions.

§ 69.7

§ 69.3 Applicability.
This part applies to vessels of the
United States over five net tons (as
that tonnage is determined under this
part) which are required or eligible to
be measured under this part, a Federal
law, or an international agreement or
which are subject to a Federal law or
international agreement based on the
vessel’s tonnage.
§ 69.5 Vessels required or eligible to be
measured.
(a) The following vessels (including
public vessels) are required to be measured under this part:
(1) Vessels that are to be documented
as a vessel of the United States.
(2) Vessels of 79 feet or more in overall length that engage on a foreign voyage.
(3) Vessels subject to a Federal law or
regulation based on vessel tonnage.
(4) Vessels determined by the Commandant to require measurement
under this part.
(b) The following vessels are not required to be measured under this part
but are eligible to be measured, if the
owner requests:
(1) Public vessels that are not to be
documented and will not engage on a
foreign voyage.
(2) Vessels of war.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 92–058, 57 FR 59938, Dec. 17,
1992]

§ 69.7 Vessels transiting the Panama
and Suez Canals.
(a) All vessels intending to transit
the Panama Canal, other than vessels
of war, must be measured and certificated under the system prescribed in 35
CFR part 135.
(b) All vessels intending to transit
the Suez Canal must be measured and
certificated under the Arab Republic of
Egypt Suez Canal Authority Rules of
Navigation, part IV.
(c) Panama Canal and Suez Canal
tonnage certificates are in addition to
tonnage certificates issued under this
part.
(d) Tonnage measurement services
for Panama Canal and Suez Canal certificates are provided by measurement
organizations authorized by the respective canal authority.

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§ 69.9

46 CFR Ch. I (10–1–09 Edition)

§ 69.9 Definitions.
As used in this part—
Commandant means Commandant of
the Coast Guard at the following addresses: Commanding Officer, U.S.
Coast Guard Marine Safety Center, 1900
Half Street, SW., Suite 1000, Room 525,
Washington, DC 20024 for visitors. Send
all mail to Commanding Officer, U.S.
Coast Guard Marine Safety Center, 2100
2nd St., SW., Stop 7102, Washington, DC
20024–7102, in a written or electronic
format. Information for submitting the
VSP electronically can be found at
http://www.uscg.mil/HQ/MSC.
Convention means the International
Convention on Tonnage Measurement
of Ships, 1969.
Convention Measurement System means
the system under subpart B of this
part.
Dual Measurement System means the
system under subpart D of this part.
Great Lakes means the Great Lakes of
North America and the St. Lawrence
River west of a rhumb line drawn from
Cap des Rosiers to West Point, Anticosti Island, and, on the north side of
Anticosti Island, the meridian of longitude 63 degrees west.
Gross tonnage means a vessel’s approximate volume. Under the Convention Measurement System, it means
the total volume of all enclosed spaces
modified by a coefficient. Under the
Standard and Dual Measurement Systems, it means the total volume of all
enclosed spaces less certain exempt
spaces. Under the Simplified Measurement Systems, it means the product of
a vessel’s length, depth, and breadth
modified by a coefficient.
National Vessel Documentation Center
means the organizational unit designated by the Commandant to process
vessel documentation transactions and
maintain
vessel
documentation
records. The address can be found in
§ 67.3 of this subchapter.
Net tonnage means a measure of a
vessel’s earning capacity. Under the
Convention Measurement System, it
means the volume of the actual cargo
and passenger spaces modified by a formula based on the vessel’s volume.
Under the Standard and Dual Measurement Systems, it means the gross tonnage less certain deducted spaces.
Under the Simplified Measurement

System, it means the gross tonnage
modified by a coefficient.
Overall length means the horizontal
distance between the foremost part of a
vessel’s stem to the aftermost part of
its stern, excluding fittings and attachments.
Simplified Measurement System means
the system under subpart E of this
part.
Standard Measurement System means
the system under subpart C of this
part.
Tonnage means the volume of a vessel’s enclosed spaces as calculated
under a measurement system in this
part. Tonnage calculated under the
Standard, Dual, or Simplified Measurement System is based on tons of 100
cubic feet each. Tonnage calculated
under the Convention Measurement
System is based on tons of 100 cubic
feet modified by a logarithmic function.
Vessel engaged on a foreign voyage
means a vessel—
(a) Arriving at a place under the jurisdiction of the United States from a
place in a foreign country;
(b) Making a voyage between places
outside of the United States;
(c) Departing from a place under the
jurisdiction of the United States for a
place in a foreign country; or
(d) Making a voyage between a place
within a territory or possession of the
United States and another place under
the jurisdiction of the United States
not within that territory or possession.
Vessel of war means ‘‘vessel of war’’
as defined in 46 U.S.C. 2101.
[GCD 89–007; GCD 89–007a, 58 FR 60266, Nov.
15, 1993, 58 FR 65131, Dec. 13, 1993, as amended
by CGD 95–014, 60 FR 31606, June 15, 1995;
CGD 95–072, 60 FR 50463, Sept. 29, 1995; 60 FR
54106, Oct. 19, 1995; CGD 96–041, 61 FR 50728,
Sept. 27, 1996; USCG–2007–29018, 72 FR 53965,
Sept. 21, 2007; USCG–2009–0702, 74 FR 49230,
Sept. 25, 2009]

§ 69.11 Determining the measurement
system or systems for a particular
vessel.
(a) Convention Measurement System
(subpart B). (1) Except as otherwise provided in this section, this system applies to a vessel documented or to be
documented under part 67 of this chapter and to a vessel engaged on a foreign
voyage.

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Coast Guard, Dept. of Homeland Security
(2) This system does not apply to the
following vessels:
(i) A vessel of less than 79 feet in
overall length.
(ii) A vessel operating only on the
Great Lakes, unless the owner requests
measurement under this system.
(iii) A vessel that is not engaged on a
foreign voyage and that had its keel
laid or was at a similar stage of construction before January 1, 1986, unless
the owner requests measurement under
the Convention Measurement System
or unless, on or after January 1, 1986,
the vessel undergoes a change that the
Commandant finds substantially affects the vessel’s gross tonnage.
(iv) A vessel of war.
(v) A non-self-propelled vessel not engaged on a foreign voyage, unless the
owner requests measurement under
this system.
(3) A vessel made subject to this system at the request of the owner may be
remeasured only under this system.
(4) For the purpose of vessel documentation, a vessel measured under
this system is not required to be measured under another system.
(5) A vessel the keel of which was laid
or that was at a similar stage of construction before July 18, 1982, (except a
vessel measured under this system at
the request of the owner or because of
a change that substantially affects the
vessel’s gross tonnage) may retain its
tonnage in effect on July 18, 1994, for
the application of relevant requirements under an international agreement (except the Convention) or other
laws of the United States. However, if
the vessel undergoes a change after
July 18, 1994, that the Commandant
finds substantially affects the vessel’s
gross tonnage, the vessel must be remeasured only under this system.
(6) A tonnage assignment under this
system does not affect the applicability to the vessel of international
agreements to which the United States
Government is a party that are not in
conflict with the Convention or with
the application of International Maritime Organization (IMO) Resolutions
A.494(XII) of November 19, 1981,
A.540(XIII) of November 17, 1983, and
A.541(XIII) of November 17, 1983. When
applicable to the vessel, these Resolutions provide interim schemes for using

§ 69.13

the vessel’s existing gross tonnage, instead of the gross tonnage under the
Convention Measurement System, for
applying the International Convention
for the Safety of Life at Sea (SOLAS),
the
International
Convention
on
Standards of Training, Certification,
and Watchkeeping for Seafarers, 1978,
(STCW), and the International Convention for the Prevention of Pollution
from Ships, 1973, (MARPOL), respectively.
(b) Standard Measurement System (subpart C). This system applies to a vessel
not required to be measured under the
Convention Measurement System if the
vessel is to be documented or if the application of a law of the United States
to the vessel depends on the vessel’s
tonnage. Upon request of the owner,
this system also applies to a documented vessel measured under the Convention Measurement System when
Standard Measurement System tonnages are to be used in applying the
provisions of a law under 46 U.S.C.
14305.
(c) Dual Measurement System (subpart
D). This system may be applied, at the
owner’s option, instead of the Standard
Measurement System, to a vessel eligible or required to be measured under
the Standard Measurement System.
(d) Simplified Measurement System
(subpart E). This system may be applied, at the owner’s option, instead of
the Standard Measurement System to
the following vessels:
(1) A vessel that is under 79 feet in
overall length.
(2) A vessel of any length that is nonself-propelled and not engaged on a foreign voyage.
(3) A vessel of any length that is operated only for pleasure and operated
only on the Great Lakes.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 92–058, 57 FR 59938, Dec. 17,
1992; CGD 95–028, 62 FR 51203, Sept. 30, 1997]

§ 69.13 Deviating from the provisions
of a measurement system.
(a) In measuring a vessel under a
measurement system in this part, all
provisions of that system applicable to
the vessel must be observed.
(b) The provisions of more than one
measurement system may not be applied interchangeably or combined.

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§ 69.15

46 CFR Ch. I (10–1–09 Edition)

§ 69.15 Authorized measurement organizations.
(a) Except as provided under paragraphs (c) and (d) of this section, all
U.S. vessels to be measured or remeasured under the Convention, Standard,
or Dual Measurement Systems must be
measured by an authorized measurement organization meeting the requirements of § 69.27 of this subpart. A current listing of authorized measurement
organizations can be obtained by visitors from the Commanding Officer,
U.S. Coast Guard Marine Safety Center, 1900 Half Street, SW., Suite 1000,
Room 525, Washington, DC 20024, or by
writing to: Commanding Officer, U.S.
Coast Guard Marine Safety Center, 2100
2nd St., SW., Stop 7102, Washington, DC
20593–7102.
(b) All vessels to be measured or remeasured under the Simplified Measurement System must be measured by
the Coast Guard. Applications for
measurement under the Simplified
Measurement System are obtainable
from the National Vessel Documentation Center.
(c) All U.S. Coast Guard vessels and
all U.S. Navy vessels of war to be measured or remeasured under any measurement system must be measured by the
Coast Guard.
(d) At the option of the Commandant,
the Coast Guard may measure any vessel to determine its tonnage.
(e) The appropriate certificate of
measurement is issued by the measuring organization as evidence of the
vessel’s measurement under this part.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 92–058, 57 FR 59938, Dec. 17,
1992; CGD 92–053, 59 FR 50508, Oct. 4, 1994;
CGD 95–014, 60 FR 31606, June 15, 1995; CGD
97–057, 62 FR 51045, Sept. 30, 1997; USCG–2007–
29018, 72 FR 53965, Sept. 21, 2007; USCG–2009–
0702, 74 FR 49230, Sept. 25, 2009]

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§ 69.17 Application
services.

for

measurement

(a) Applications for measurement are
available from and, once completed,
are submitted to the authorized measurement organization that will perform
the services. The contents of the application are described in this part under
the requirement for each system.

(b) Applications for measurement
under more than one system may be
combined.
(c) For vessels under construction,
the application must be submitted before the vessel is advanced in construction. Usually, this means as soon as the
decks are laid, holds cleared of encumbrances, engine and boilers installed,
and accommodations partitioned.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997]

§ 69.19 Remeasurement
ment of tonnage.

and

(a) If a vessel that is already measured is to undergo a structural alteration or if the use of a space within
that vessel is to be changed, a remeasurement may be required. Vessel
owners shall report immediately to an
authorized measurement organization
any intent to structurally alter the
vessel or to change the use of a space
within the vessel. The organization advises the owner if remeasurement is
necessary. Spaces not affected by the
alteration or change need not be remeasured.
(b) When there is a perceived error in
the application of a regulation or in
the tonnage calculations, the vessel
owner should contact the responsible
measurement organization. If the error
is verified, the tonnage is adjusted as
necessary.
(c) If a remeasurement or adjustment
of tonnage is required, the organization
will issue a new tonnage certificate. If
the vessel is documented, the vessel’s
owner must surrender the Certificate
of Documentation as required under
part 67, subpart 67.25, of this chapter.
(d) A vessel of less than 79 feet in
overall length measured under the
Standard or Dual Measurement Systems may be remeasured at the owner’s
request under the Simplified Measurement System.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997]

§ 69.21

Right of appeal.

Any person directly affected by a decision or action taken under this part,
by or on behalf of the Coast Guard,

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Coast Guard, Dept. of Homeland Security
may appeal therefrom in accordance
with subpart 1.03 of this chapter.
[CGD 88–033, 54 FR 50380, Dec. 6, 1989]

§ 69.23 Fees.
Measurement organizations are authorized to charge a fee for measurement services. Information on fees is
available directly from the organizations.
[CGD 97–057, 62 FR 51045, Sept. 30, 1997]

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§ 69.25 Penalties.
(a) General violation. The owner,
charterer, managing operator, agent,
master, and individual in charge of a
vessel in violation of a regulation in
this part are each liable to the United
States Government for a civil penalty
of not more than $20,000. Each day of a
continuing violation is a separate violation. The vessel also is liable in rem
for the penalty.
(b) False Statements. A person knowingly making a false statement or representation in a matter in which a
statement or representation is required
by this part is liable to the United
States Government for a civil penalty
of not more than $20,000 for each false
statement or representation. The vessel also is liable in rem for the penalty.
§ 69.27 Delegation of authority to
measure vessels.
(a) Under 46 U.S.C. 14103 and 49 CFR
1.46, the Coast Guard is authorized to
delegate to a ‘‘qualified person’’ the authority to measure vessels and to issue
appropriate certificates of measurement for U.S. vessels that are required
or eligible to be measured as vessels of
the United States.
(b) Authority to measure and certify
U.S. vessels under the Convention,
Standard, and Dual Measurement Systems may be delegated to an organization that—
(1) Is a full member of the International Association of Classification
Societies (IACS);
(2) Is incorporated under the laws of
the United States, a State of the
United States, or the District of Columbia;
(3) In lieu of the requirements in
paragraphs (b)(1) and (2) of this section,
is a recognized classification society

§ 69.27

under the requirements of 46 CFR part
8.
(4) Is capable of providing all measurement services under the Convention, Standard, and Dual Measurement
Systems for vessels domestically and
internationally;
(5) Maintains a tonnage measurement
staff that has practical experience in
measuring U.S. vessels under the Convention, Standard, and Dual Measurement Systems; and
(6) Enters into a written agreement,
as described in paragraph (d) of this
section.
(c) Applications for delegation of authority under this section must be forwarded to the Commandant and include the following information on the
organization:
(1) Its name and address.
(2) Its organizational rules and structure.
(3) The location of its offices that are
available to provide measurement services under the Convention, Standard,
and Dual Measurement Systems.
(4) The name, qualifications, experience, and job title of each full-time or
part-time employee or independent
contractor specifically designated by
the organization to provide measurement services under the Convention,
Standard, or Dual Measurement Systems.
(5) Its tonnage measurement training
procedures.
(d) If, after reviewing the application, the Coast Guard determines that
the organization is qualified to measure and certify U.S. vessels on behalf of
the Coast Guard, the organization
must enter into a written agreement
with the Coast Guard which—
(1) Defines the procedures for administering and implementing the tonnage
measurement and certification processes, including the roles and responsibilities of each party;
(2) Outlines the Coast Guard’s oversight role;
(3) Prohibits the organization from
using an employee or contractor of the
organization to measure and certify
the tonnage of a vessel if that employee or contractor is acting or has
acted as a tonnage consultant for that
same vessel; and
(4) Requires the organization to—

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§ 69.29

46 CFR Ch. I (10–1–09 Edition)

(i) Accept all requests to perform delegated services without discrimination
and without regard to the vessel’s location, unless prohibited from doing so
under the laws of the United States or
under the laws of the jurisdiction in
which the vessel is located;
(ii) Physically inspect each vessel before issuing a tonnage certificate;
(iii) Provide the Coast Guard with
current schedules of measurement fees
and related charges;
(iv) Maintain a tonnage measurement
file for each U.S. vessel that the organization measures and permit access to
the file by any person authorized by
the Commandant;
(v) Permit observer status representation by the Coast Guard at all formal
discussions that may take place between the organization and other vessel tonnage measurement organizations pertaining to tonnage measurement of U.S. vessels or to the systems
under which U.S. vessels are measured;
(vi) Comply with and apply all laws
and regulations relating to tonnage
measurement of U.S. vessels within the
scope of authority delegated; and
(vii) Comply with all other provisions, if any, of the written agreement.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997; CGD 95–010, 62 FR 67536, Dec. 24, 1997]

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§ 69.29 OMB control numbers assigned
under the Paperwork Reduction
Act.
(a) Purpose. This section collects and
displays the control numbers assigned
to information collection and record
keeping requirements in this part by
the Office of Management and Budget
(OMB) pursuant to the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et
seq.). The Coast Guard intends that this
part comply with 44 U.S.C. 3507(f),
which requires that agencies display
the current control number assigned by
the Director of OMB for each approved
agency information collection requirement.
(b) Display—
Currently
assigned
OMB control
No.

Section of 46 CFR part 69

69.17 ..................................................................
69.19 ..................................................................
69.21 ..................................................................

1625–0022
1625–0022
1625–0022

Currently
assigned
OMB control
No.

Section of 46 CFR part 69

69.27 ..................................................................
69.55 ..................................................................
69.105 ................................................................
69.121(d) ...........................................................
69.159 ................................................................
69.179 ................................................................
69.205 ................................................................

[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by USCG–2004–18884, 69 FR 58346,
Sept. 30, 2004]

Subpart B—Convention
Measurement System
§ 69.51

Purpose.

This subpart prescribes the requirements for measuring a vessel in order
to comply with the International Convention on Tonnage Measurement of
Ships, 1969 (Convention), and 46 U.S.C.
chapter 143.
§ 69.53

Definitions.

As used in this subpart—
Amidships means the midpoint of the
registered
length,
as
‘‘registered
length’’ is defined in this section.
Cargo space means an enclosed space
appropriated for the transport of cargo
which is to be discharged from the vessel. The term does not include a space
which qualifies as an excluded space
under § 69.61.
Enclosed space is defined in § 69.59.
Excluded space is defined in § 69.61.
Gross tonnage or GT means the tonnage determined under § 69.57.
Line of the upper deck means a longitudinal line at the underside of the
upper deck or, if that deck is stepped,
the longitudinal line of the underside
of the lowest portion of that deck parallel with the upper portions of that
deck.
Molded depth means the vertical distance amidships between the following
points:
(a) From the line of the upper deck at
the vessel’s side or, if the vessel has
rounded gunwales, from the intersection of the line of the upper deck extended to the molded line of the shell
plating as though the gunwales were of
angular design.

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(b) To the top of the flat keel, to the
lower edge of the keel rabbet if the vessel is of wood or composite structure,
or to the point where the line of the
flat of the bottom extended inward
cuts the side of the keel if the vessel’s
lower part is hollow or has thick
garboards.
Molded draft means—
(a) For vessels assigned a load line
under parts 42, 44, 45, or 47 of this chapter, the draft corresponding to the
Summer Load Line (other than a timber load line);
(b) For passenger vessels assigned a
load line under part 46 of this chapter,
the draft corresponding to the deepest
subdivision load line assigned;
(c) For vessels to which parts 42, 44,
45, 46, or 47 of this chapter do not apply
but which otherwise have been assigned a load line, the draft corresponding to the Summer Load Line
so assigned;
(d) For vessels to which no load line
has been assigned but the draft of
which is restricted under any Coast
Guard requirement, the maximum
draft permitted under the restriction;
and
(e) For other vessels, 75 per cent of
the molded depth.
Net tonnage or NT means tonnage determined under § 69.63.
Passenger means a person on board a
vessel other than—
(a) The master, a member of the
crew, or other person employed or engaged in any capacity in the business
of the vessel; and
(b) A child under one year of age.
Registered breadth means the maximum breadth of a vessel measured
amidships to the molded line of the
frame in a vessel with a metal shell
and to the outer surface of the hull in
all other vessels.
Registered length means either 96 percent of the length on a waterline at 85
percent of the least molded depth
measured from the top of the flat keel
or the length from the fore side of the
stem to the axis of the rudder stock on
that waterline, whichever is greater. In
vessels designed with a rake of keel,
this length is measured on a waterline
parallel to the design waterline.
Upper deck means the uppermost
complete deck exposed to weather and

§ 69.59

sea, which has permanent means of
weathertight closing of all openings in
the weather part of the deck, and below
which all openings in the sides of the
vessel are fitted with permanent means
of watertight closing.
Weathertight means secure against
penetration of water into the vessel in
any sea condition.
§ 69.55 Application
services.

for

measurement

Applications for measurement under
this subpart must include the following
information and plans:
(a) Type of vessel.
(b) Vessel’s name and official number
(if assigned).
(c) Builder’s name and the vessel hull
number assigned by builder.
(d) Place and year built.
(e) Date keel was laid.
(f) Overall length, breadth, and depth
of vessel.
(g) Lines plan.
(h) Booklet of offsets at stations.
(i) Capacity plans for tanks and cargo
compartments.
(j) Hydrostatic curves.
(k) Construction plans showing measurements and scantlings of deck structures, hatches, appendages, recesses,
and other enclosed spaces.
(l) Arrangement plans.
[GCD 89–007; GCD 89–007a, 58 FR 60266, Nov.
15, 1993, 58 FR 65131, Dec. 13, 1993, as amended
by CGD 95–014, 60 FR 31606, June 15, 1995]

§ 69.57

Gross tonnage.

Gross tonnage (GT) is determined by
the following formula GT=K1 V, in
which V=total volume of all enclosed
spaces in cubic meters and K1=0.2+0.02
log10 V.
§ 69.59

Enclosed spaces.

Enclosed space means a space which is
bounded by the vessel’s hull, by fixed
or portable partitions or bulkheads, or
by decks or coverings other than permanent or movable awnings. No break
in a deck, nor any opening in the vessel’s hull, in a deck or in a covering of
a space, or in the partitions or bulkheads of a space, nor the absence of a
partition or bulkhead precludes the
space from being included in the enclosed space.

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46 CFR Ch. I (10–1–09 Edition)

§ 69.61 Excluded spaces.
(a) Excluded space means an enclosed
space which is excluded from volume
(V) in calculating gross tonnage. Except as under paragraph (g) of this section, this section lists the excluded
spaces.
(b) A space that is within a structure
and that is opposite an end opening extending from deck to deck (except for a
curtain plate of a height not exceeding
by more than one inch the depth of the
adjoining deck beams) and having a
breadth equal to or greater than 90 percent of the breadth of the deck at the
line of the opening is an excluded
space, subject to the following:
(1) Only the space between the actual
end opening and a line drawn parallel
to the line or face of the opening at a
distance from the opening equal to onehalf of the breadth of the deck at the
line of the opening is excluded. (See
§ 69.75, figure 1.)
(2) If, because of any arrangement
(except convergence of the outside
plating as shown in § 69.75, figure 3), the
breadth of the space is less than 90 percent of the breadth of the deck, only
the space between the line of the opening and a parallel line drawn through
the point where the athwartship
breadth of the space is equal to 90 percent or less of the breadth of the deck
is excluded. (See § 69.75, figures 2 and 4.)
(3) When any two spaces, either of
which is excluded under paragraphs
(b)(1) or (b)(2) of this section, are separated by an area that is completely
open except for bulwarks or open rails,
these two spaces must not be excluded
if the separation between the two
spaces is less than the least half
breadth of the deck in way of the separation. (See § 69.75, figures 5 and 6.)
(4) When the deck at the line of an
opening has rounded gunwales, the
breadth of the deck is the distance between the tangent points indicated in
§ 69.75, figure 11.
(c) A space that is open to the weather and that is under an overhead deck
covering with no connection on the
space’s exposed sides between the covering and the deck other than the stanchions necessary for the covering’s support is an excluded space. An open rail
or bulwark fitted at the vessel’s side
does not disqualify the space from

being an excluded space if the height
between the top of the rail or bulwark
and the overhead structure or curtain
plate (if fitted) is not less than 2.5 feet
or one-third of the height of the space,
whichever is greater. (See § 69.75, figure
7.)
(d) A space in a side-to-side structure
directly in way of opposite side openings not less than 2.5 feet in height or
one-third of the height of the structure, whichever is greater, is an excluded space. If the opening is only on
one side of the structure, the space to
be excluded is limited inboard from the
opening to a maximum of one-half of
the breadth of the deck in way of the
opening. (See § 69.75, figure 8.)
(e) A space in a structure immediately below an uncovered opening in
the deck overhead is an excluded space,
if the opening is exposed to the weather and the space to be excluded is limited to the area of the opening. (See
§ 69.75, figure 9.)
(f) A recess in the boundary bulkhead
of a structure which is exposed to the
weather and which has an opening that
extends from deck to deck without a
means of closing is an excluded space,
if the interior width of the space is not
greater than the width of the opening
and extension of the space into the
structure is not greater than twice the
width of the opening. (See § 69.75, figure
10.)
(g) Any space described in paragraphs
(b) through (f) of this section which fulfills at least one of the following conditions is not an excluded space:
(1) The space is fitted with shelves or
other means designed for securing
cargo or stores.
(2) The opening that would otherwise
permit the space to be excluded space
is fitted with a means of closure.
(3) Other features of the space make
it possible for the space to be closed.
§ 69.63 Net tonnage.
Net tonnage (NT) is determined by
the formula:
2

⎛
⎛ 4d ⎞
N2 ⎞
NT = K 2 VC ⎜
⎟,
⎟ + K 3 ⎜ N1 +
⎝
⎝ 3D ⎠
10 ⎠
in which:
Vc = total volume of cargo spaces in cubic
meters.

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§ 69.61

Coast Guard, Dept. of Homeland Security
K2 = 0.2 + 0.02 log10 Vc.

⎛ GT + 10,000 ⎞
K3 = 1.25 ⎜
⎟
⎝ 10,000 ⎠
D = molded depth amidships in meters, as
‘‘molded depth’’ is defined in § 69.53.
d = molded draft amidships in meters, as
‘‘molded draft’’ is defined in § 69.53.
N1 = number of passengers in cabins with not
more than eight berths, as ‘‘passenger’’ is
defined in § 69.53.
N2 = number of other passengers, as ‘‘passenger’’ is defined in § 69.53.
GT = gross tonnage as determined under
§ 69.57.
N1 plus N2 must equal the total number of
passengers the vessel is permitted to carry
as indicated on the ship’s Passenger Certificate. If N1 plus N2 is less than 13, both
N1 and N2 are zero.
2

⎛ 4d ⎞
must not be greater than unity.
⎝ 3D ⎠
2

⎛ 4d ⎞
must not be less than 0.25 GT.
⎝ 3D ⎠

NT must not be less than 0.30 GT.
[CGD 97–057, 62 FR 51045, Sept. 30, 1997]

Calculation of volumes.

(a) Volumes V and Vc used in calculating gross and net tonnages, respectively, must be measured and calculated according to accepted naval architectural practices for the spaces
concerned.
(b) The volume of the hull below the
upper deck is determined as follows:
(1) If the number and location of sections originally used in making other
calculations which relate to the form
of the vessel (such as displacement volumes and center of buoyancy) are reasonably available, Simpson’s first rule
may be applied using those sections.
(2) If the number and location of stations originally used are not reasonably available or do not exist and the
hull is of conventional design with
faired lines, Simpson’s first rule may
be applied using a number and location
of stations not less than those indicated in § 69.109(g)(1).
(3) If the hull is of standard geometric shape, a simple geometric formula that yields a more accurate volume may be used.

§ 69.67

Marking of cargo spaces.

Cargo spaces used in determining volume (Vc) for calculating net tonnage
must be permanently marked with the
letters ‘‘CC’’ (cargo compartment)
which are at least four inches in height
and positioned so as to be visible at all
times.
§ 69.69 Issuance of an International
Tonnage Certificate (1969).
On request of the vessel owner, an
International
Tonnage
Certificate
(1969) is issued for a vessel measured
under this subpart that is 79 feet or
more in registered length and that will
engage on a foreign voyage. The Certificate is issued to the vessel owner or
master and must be maintained on
board the vessel when it is engaged on
a foreign voyage.
§ 69.71

Change of net tonnage.

(a) When a vessel is altered so that
the net tonnage is increased, the new
net tonnage must be applied immediately.

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§ 69.65

(4) If the lines of the hull are not fair,
the volume may be measured by using
a combination of methods under this
section.
(c) The volume of structures above
the upper deck may be measured by applying the superstructure provisions in
§ 69.113 or by any accepted method or
combinations of methods.
(d) Measurements must be taken, regardless of the fitting of insulation or
the like—
(1) To the inner side of the shell or
structural boundary plating, in vessels
constructed of metal; and
(2) To the outer surface of the shell
or to the inner side of structural
boundary surfaces, in all other vessels.
(e) When determining the volume of a
cargo space, measurements must be
taken without consideration for insulation, sparring, or ceiling fitted within
the space.
(f) Measurements must be to the
nearest one-twentieth of a foot.
(g) Calculations must be made on a
worksheet and must be sufficiently detailed to permit easy review. The
measurement procedures used must be
identified on the worksheet.

ER30SE97.007

K 2 Vc

§ 69.71

§ 69.73

46 CFR Ch. I (10–1–09 Edition)

WReier-Aviles on DSKGBLS3C1PROD with CFR

(b) A vessel concurrently assigned
load lines under both the International
Convention on Load Lines and either
the International Convention for the
Safety of Life at Sea (SOLAS) or other
international agreement must be assigned only one net tonnage. The net
tonnage assigned must be the net tonnage applicable to the load line assigned under the International Convention on Load Lines, SOLAS or other
international agreement for the trade
in which the vessel in engaged.
(c) When a vessel is altered so that
the net tonnage is decreased or the vessel’s trade is changed so that the load
line assigned for that trade under paragraph (b) of this section is no longer
appropriate and results in a decrease in
its net tonnage, a new International
Tonnage
Certificate
(1969)
incorporating that net tonnage may not be
issued until twelve months after the
date on which the current Certificate
was issued. However, if one of the following apply, a new Certificate may be
issued immediately:
(1) The vessel is transferred to the
flag of another nation.
(2) The vessel undergoes alterations
or modifications which the Coast

Guard deems to be of a major character, such as the removal of a superstructure which requires an alteration
of the assigned load line.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by USCG–1999–6216, 64 FR 53225, Oct.
1, 1999]

§ 69.73 Variance from the prescribed
method of measurement.
(a) When application of this subpart
to a novel type vessel produces unreasonable or impractical results, the
Commandant may determine a more
suitable method of measurement.
(b) Requests for a determination
must be submitted to the Commandant, explaining the problem, and
including plans and sketches of the
spaces in question.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997; USCG–1999–6216, 64 FR 53225, Oct. 1, 1999]

§ 69.75

Figures.

0=excluded space.
C=enclosed space.
I=space to be considered as an enclosed
space.
B=breadth of deck in way of the opening.

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§ 69.101

46 CFR Ch. I (10–1–09 Edition)

Standard Measurement
scribed in 46 U.S.C. 14512.

§ 69.101

§ 69.103

Purpose.

System

de-

Definitions.

As used in this subpart—

This subpart prescribes the procedures for measuring a vessel under the

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Subpart C—Standard
Measurement System

WReier-Aviles on DSKGBLS3C1PROD with CFR

Coast Guard, Dept. of Homeland Security
Between-deck means the space above
the line of the tonnage deck and below
the line of the deck next above.
Break means the space between the
line of a deck and the upper portion of
that deck, in cases where that deck is
stepped and continued at a higher elevation.
Camber means the perpendicular rise
or crown of a deck at the centerline of
the vessel measured above the skin of
the vessel at the vessel’s sides.
Ceiling means the permanent planking or plating fitted directly on the inboard side of frames, floors, or double
bottom and includes cargo battens and
refrigeration insulation but does not
include false ceiling which stands off
from the framing.
Coaming means both the vertical
plating around a hatch or skylight and
the sill below an opening in a bulkhead.
Deckhouse means a structure that is
on or above the uppermost complete
deck and that does not extend from
side to side of the vessel. The term includes cabin trunks and closed-in
spaces over the holds of vessels.
Depth of frame means the perpendicular depth of a bottom frame and
the athwart distance between the inboard and outboard faces of a side
frame.
Double bottom means a space at the
bottom of a vessel between the inner
and outer bottom plating and used
solely for water ballast.
Floor means a vertical plate or timber extending from bilge to bilge in the
bottom of a vessel. In a wooden vessel,
‘‘floor’’ means the lowermost timber
connecting the main frames at the keel
when that timber extends the full
depth of the frames to which it is fastened. In a double bottom, floors usually extend from the outer to the inner
bottom.
Gross tonnage is defined in § 69.107(a).
Hatch means an opening in a deck
through which cargo is laden or discharged.
Line of tonnage deck means the line
determined under § 69.109(e).
Line of uppermost complete deck means
the line determined under § 69.111(b).
Net tonnage is defined in § 69.107(b).
Registered breadth is defined in § 69.53.

§ 69.105

Registered depth means ‘‘molded
depth’’ as defined in § 69.53.
Registered length is defined in § 69.53.
Shelter deck means the uppermost
deck that would have qualified as the
uppermost complete deck had it not
been fitted with a middle line opening.
Step means a cutoff in a deck or in
the bottom, top, or sides of a space resulting in varying heights of a deck or
varying heights or widths of a space.
Superstructure means all permanent
structures (such as forecastle, bridge,
poop, deckhouse, and break) on or
above the line of the uppermost complete deck or, if the vessel has a shelter
deck, on or above the line of the shelter deck.
Tonnage deck is defined in § 69.109(c).
Tonnage length is defined in § 69.109(f).
Uppermost complete deck means the
uppermost deck—
(a) Which extends from stem to stern
and from side to side at all points of its
length;
(b) The space below which is enclosed
by the sides of the vessel;
(c) Through which there is no opening that would exempt the space below
from being included in gross tonnage;
and
(d) Below which there is no opening
through the hull that would exempt
the space below from being included in
gross tonnage.
§ 69.105 Application for measurement
services.
Applications for measurement services under this subpart must include
the following information and plans:
(a) Type of vessel.
(b) Vessel’s name and official number
(if assigned).
(c) Builder’s name and the vessel hull
number assigned by the builder.
(d) Place and year built.
(e) Date keel was laid.
(f) Overall length, breadth, and depth
of vessel.
(g) Lines plan.
(h) Booklet of offsets.
(i) Capacity plans for tanks
(j) Construction plans showing measurements and scantlings of hull and superstructure.
(k) Tonnage drawing showing tonnage length in profile and tonnage sections.

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§ 69.107

46 CFR Ch. I (10–1–09 Edition)

(l) Arrangement plans.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 95–014, 60 FR 31606, June 15,
1995]

WReier-Aviles on DSKGBLS3C1PROD with CFR

§ 69.107 Gross and net tonnages.
(a) Gross tonnage is the sum of the
following tonnages, less certain spaces
exempt under § 69.117:
(1) Under-deck tonnage (§ 69.109).
(2) Between-deck tonnage (§ 69.111).
(3) Superstructure tonnage (§ 69.113).
(4)
Excess
hatchway
tonnage
(§ 69.115(c)).
(5) Tonnage of framed-in propelling
machinery spaces included in calculating gross tonnage (§ 69.121(d)(1)).
(b) Net tonnage is gross tonnage less
deductions under §§ 69.119 and 69.121.
§ 69.109 Under-deck tonnage.
(a) Defined. ‘‘Under-deck tonnage’’
means the tonnage of the space below
the line of the tonnage deck, as that
volume is calculated under this section.
(b) Method of calculating tonnage.
Under-deck tonnage is calculated by
applying Simpson’s first rule using the
tonnage length and the areas of the
transverse sections prescribed by this
section.
(c) Identifying the tonnage deck. In
vessels with two or less decks, the tonnage deck is the uppermost complete
deck. In vessels with more than two
decks, the tonnage deck is the second
deck from the keel as determined in
paragraph (d) of this section.
(d) Enumerating the decks to identify
the second deck from the keel. Only decks
without openings that permit space
below to be exempt from inclusion in
under-deck tonnage are enumerated.
Partial decks are not considered decks
for the purpose of enumerating decks.
However, the presence of engine and
boiler
casings,
peak
tanks,
or
cofferdams that penetrate a deck do
not disqualify the deck from being enumerated.
(e) Identifying the line of the tonnage
deck. (1) If the tonnage deck runs in a
continuous line from stem to stern, the
line of the tonnage deck is the longitudinal line at the underside of the tonnage deck.
(2) If the tonnage deck runs at different levels from stem to stern, the

line of the tonnage deck is the longitudinal line of the underside of the lowest
portion of that deck parallel with the
upper portions of that deck. (See
§ 69.123, figures 1 and 2.) Spaces between
the line of the tonnage deck and the
higher portions of that deck are not included in under-deck tonnage.
(f) Tonnage length. (1) ‘‘Tonnage
length’’ means the length of a horizontal straight line measured at the
centerline of the vessel from the point
forward where the line of the tonnage
deck intersects the line of the inboard
faces of the ordinary side frames to the
point aft where the line of the tonnage
deck intersects the inboard face of the
transom frames or cant frames. (See
§ 69.123, figure 3.)
(2) For a vessel having a headblock or
square end with framing which extends
from the tonnage deck to the bottom of
the vessel, the tonnage length terminates on the inboard face of the head
block or end framing. When a
headblock extends inboard past the
face of the end side frames or when the
headblock plates are excessive in
length, the tonnage length terminates
at the extreme end of the vessel less a
distance equal to the thickness of an
ordinary side frame and shell plating.
(See § 69.123, figure 4.)
(3) For a vessel having a square bow
or stern and tonnage deck with camber, the effect of the camber on the
tonnage length must be considered.
The tonnage length must be measured
below the tonnage deck at a distance
equal to one-third of round camber and
one-half of straight pitch camber.
(g) Division of vessel into transverse
sections. (1) Except as under paragraph
(m)(1)(iii) of this section, the tonnage
length is divided into an even number
of equal parts as indicated in the following table:
Class

Tonnage length

1 ...................
2 ...................
3 ...................

50 ft. or less ....................................
Over 50 ft. but not exceeding 100 ft
Over 100 ft. but not exceeding 150
ft.
Over 150 ft. but not exceeding 200
ft.
Over 200 ft. but not exceeding 250
ft.
Over 250 ft. .....................................

4 ...................
5 ...................
6 ...................

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Divisions
6
8
10
12
14
16

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Coast Guard, Dept. of Homeland Security
(2) Transverse sections are cut at
each end of the tonnage length and at
each point of division of the tonnage
length. Intervals and one-third intervals between the points of division are
measured to the nearest thousandth of
a foot. (See § 69.123 figures 5 and 6.)
(h) Depths of transverse sections. (1)
Transverse section depths are measured at each point of division of the
tonnage length at the centerline of the
vessel from a point below the line of
the tonnage deck equal to one-third of
the camber or to one-half of the pitch
of the beam down to the upper side of
the
ordinary
frames,
floors,
longitudinals, or tank top of a cellular
double bottom, as the case may be.
(2) When a depth falls at a point
where the tank top of a double bottom
has a straight fall from centerline to
the wings, the depth terminates at onehalf of the height of fall. (See § 69.123
figure 8.)
(3) When a depth falls at a point
where the tank top of a double bottom
rises from the centerline to the wings,
the depth terminates at one-half the
dead rise. (See § 69.123, figure 9.)
(4) The depth at the midpoint of the
tonnage length or, when a vessel is
measured in parts, the depth at the
midpoint of each part determines the
number of equal parts into which each
depth is divided, as follows:
(i) If the midpoint depth is 16 feet or
less, each depth is divided into four
equal parts. If the midpoint depth exceeds 16 feet, each depth is divided into
six equal parts. (See § 69.123, figure 7.)
(ii) The interval between the points
of division of a depth and one-third intervals are carried to the nearest hundredth of a foot.
(i) Breadths of transverse sections. (1)
Transverse section breadths are measured horizontally at each point of division of each depth and also at the
upper and lower points of each depth.
Breadths are measured to the inboard
face of the ordinary frames or to the
line of the ordinary frames. Breadths
are measured parallel to each other
and at right angle to the vessel’s centerline. (See § 69.123, figure 7.)
(2) Upper breadths are not reduced by
measuring to deck-beam brackets. In
cases of camber when an upper breadth
passes through the deck (see § 69.123,

§ 69.109

figure 7), the breadth is measured to
the line of the side frames at the under
side of the deck projected vertically up
to the height of the upper breadth.
(3) Bottom breadths are measured
only as far as the flat of the floor extends. (See § 69.123, figures 7 and 10.)
When bottom frames rise immediately
from the flat keel, bottom breadths are
equal to the breadth of the flat keel.
Where there is no double bottom and
where there is dead rise of the bottom
out to the sides of the vessel, bottom
breadths are equal to the part of the
bottom plating not affected by dead
rise.
(4) Bottom breadths falling in way of
a double bottom, the top of which rises
or falls from certerline to the wings,
are measured between the inboard
faces of the frame brackets which connect the double bottom with the
frames. (See § 69.123, figures 8 and 9.)
(j) Measuring spaces having ceiling.
The maximum allowance for terminating measurements on ceiling is
three inches on the bottom frames or
tank top and three inches on each side
frame. When ceiling is less than three
inches thick, only the actual thickness
is allowed. When ceiling is fitted on a
platform directly above the bottom
frames, depths are measured down
through the platform to the upper side
of the frames and the allowable ceiling
on the platform is then deducted.
(k) Area of transverse sections. (1) A
transverse section at an end of the tonnage length may not yield area, except
in vessels (such as barges) with an upright bow or stern.
(2) The breadths of each transverse
section are numbered from above, the
upper being ‘‘1’’, the second down being
‘‘2’’, and so on to the lowest.
(3) Multiply the even numbered
breadths by four and the odd numbered
breadths by two, except for the first
and last breadths, which are multiplied
by one.
(4) Add together the products from
paragraph (k)(3) of this section.
(5) Multiply the sum from paragraph
(k)(4) of this section by one-third of the
interval between the breadths. The
product is the area of the transverse
section.

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§ 69.111

46 CFR Ch. I (10–1–09 Edition)

(l) Tonnage. (1) Number the transverse sections successively ‘‘1’’, ‘‘2’’,
and so forth, beginning at the bow.
(2) Multiply the area of the even
numbered sections by four and the area
of the odd numbered sections by two,
except the first and last sections,
which are multiplied by one.
(3) Add together the products from
paragraph (l)(2) of this section and
multiply the sum by one-third of the
interval between the sections. The
product is the volume under-deck.
(4) The volume under-deck is divided
by 100 and is, subject to exemptions,
the under-deck tonnage.
(m) Steps in double bottom. (1) The
tonnage length of a vessel having a
step exceeding six inches in height in
its double bottom is divided into longitudinal parts at the step. Each part is
subdivided as follows to determine the
number of transverse sections:
(i) Parts 20 feet or under in length
are divided into two equal parts.
(ii) Parts over 20 feet and under 40
feet in length are divided into four
equal parts.
(iii) Parts 40 feet or over are divided
as provided in paragraph (g)(1) of this
section.
(2) The tonnage of each part is calculated separately. The sum of the tonnages of the parts is the under-deck
tonnage.
(n) Outside shaft tunnel exclusion. Any
portion of an outside shaft tunnel included in tonnage through the process
of measurement is subtracted from the
under-deck tonnage.
(o) Open vessels. (1) An open vessel is
one of any length without a deck or
with one or more partial decks, the
total length of which is less than onehalf the tonnage length.
(2) The line of the tonnage deck for
an open vessel is the upper edge of the
upper strake. Depths of transverse sections are taken from this line.
(3) Any vessel, other than one having
a mechanically refrigerated hold, that
is not an open vessel and that has a
tonnage length of less than 50 feet is
measured as an open vessel, if the distance between the line of its tonnage
deck and the upper edge of the upper
strake is more than one-sixth of the
midship depth. ‘‘Midship depth’’ means
the depth measured from the line of

the upper edge of the upper strake to
the point in the bottom used for measuring tonnage depths.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54
FR 40240, Sept. 29, 1989]

§ 69.111

Between-deck tonnage.

(a) Defined. ‘‘Between-deck tonnage’’
means the tonnage of the space above
the line of the tonnage deck and below
the line of the uppermost complete
deck.
(b) Identifying the line of the uppermost
complete deck. (1) If the uppermost complete deck runs in a continuous line
from stem to stern, the line of the uppermost complete deck is the longitudinal line of the underside of the uppermost complete deck.
(2) If the uppermost complete deck
runs at different levels from stem to
stern, the line of the uppermost complete deck is the longitudinal line of
the underside of the lowest portion of
that deck parallel with the upper portions of that deck. Spaces between the
line of the uppermost complete deck
and the higher portions of the deck are
included in superstructure tonnage.
(c) Method for calculating tonnage. The
tonnage of each level of the betweendeck space is calculated separately, as
follows:
(1) The length of each level is measured at the mid-height between the
line of the deck above and the line of
the deck below. Measure from the point
forward where the continuation of the
line of the inboard face of the normal
side frames intersects the center line of
the vessel aft to the forward face of the
normal transom framing.
(2) Divide the length under paragraph
(c)(1) of this section into the same
number of equal parts into which the
tonnage length is divided under
§ 69.109(g)(1).
(3) Measure at mid-height between
the faces of the normal side frames the
inside breadth of the space at each end
and at each point of division of the
length. Number the breadths successively ‘‘1’’, ‘‘2’’, and so forth beginning
at the bow.
(4) Multiply the even numbered
breadths by four and the odd numbered
breadths by two, except the first and
last, which are multiplied by one.

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Coast Guard, Dept. of Homeland Security
(5) Add together the products under
paragraph (c)(4) of this section and
multiply the sum by one-third of the
interval between the points at which
the breadths are taken. The product is
the square foot area of the space at
mid-height.
(6) Multiply the area of the space at
mid-height by the average of the
heights taken each point of division of
the space. The product divided by 100 is
the tonnage of that space.
(7) The between-deck tonnage is the
sum of the tonnage of each level within
the between-deck space.

WReier-Aviles on DSKGBLS3C1PROD with CFR

[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997]

§ 69.113 Superstructure tonnage.
(a) Defined. ‘‘Superstructure tonnage’’ means the tonnage of all permanent structures, such as forecastle,
bridge, poop, deckhouse, and break, on
or above the line of the uppermost
complete deck (or line of shelter deck,
if applicable).
(b) Method of calculating tonnage. The
tonnage of all structures on each level
on or above the uppermost complete
deck (or shelter deck, if applicable) is
calculated separately as follows:
(1) The length of each structure is
measured along its centerline at midheight between the line of the inboard
face of the framing on one end to the
line of the inboard face of the framing
on the other end. (See § 69.123, figure
11.)
(2) Divide the length under paragaph
(b)(1) of this section into an even number of equal parts most nearly equal to
those into which the tonnage length is
divided under § 69.109.
(3) Measure at mid-height the inside
breadth at each end and at each point
of division of the length. Number the
breadths successively ‘‘1’’, ‘‘2’’, and so
forth, beginning at the extreme forward end of the structure. If an end of
the structure is in the form of a continuous arc or curve, the breadth at that
end is one-half the nearest breadth. If
an end is in the form of an arc or curve
having a decided flat, the breadth at
the end is two-thirds of the nearest
breadth.
(4) Multiply the even numbered
breadths by four and the odd numbered

§ 69.115

by two, except the first and last
breadth, which are multiplied by one.
(5) Add together the products under
paragraph (b)(4) of this section and
multiply the sum by one-third of the
interval between the points at which
the breadths are taken. The product is
the square foot area of the structure at
mid-height.
(6) Multiply this area by the average
of the heights taken at each point of
division of the structure between its
decks or the line of its decks. The product divided by 100 is the tonnage of
that structure.
(c) A structure having steps in its
deck or side must be measured in parts.
(d) The superstructure tonnage is the
sum of tonnages of each level above the
line of the uppermost complete deck
(or shelter deck, if applicable).
(e) When a structure is located over a
cut-away portion of the tonnage deck,
the structure’s height is measured
from the under side of its overhead
deck to the line of the tonnage deck. If
the tonnage deck has no camber, allow
for camber in the overhead deck.
(f) For structures of a standard geometric shape, a simple geometric formula that yields an accurate volume
may be used.
§ 69.115

Excess hatchway tonnage.

(a) Hatchways that are above the
tonnage deck and are either open to
the weather or within open structures
are measured to determine excess
hatchway tonnage. Hatchways that are
in between-deck spaces, on decks within closed-in structures, or on open
structures are not measured.
(b) The tonnage of a hatchway is its
length times breadth times mean depth
divided by 100. Mean depth is measured
from the under side of the hatch cover
to the top of the deck beam.
(c) From the sum of the tonnage of
the hatchways under this section, subtract one-half of one percent of the vessel’s gross tonnage exclusive of the
hatchway tonnage. The remainder is
added as excess hatchway tonnage in
calculating gross tonnage.

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§ 69.117

46 CFR Ch. I (10–1–09 Edition)

§ 69.117 Spaces exempt from inclusion
in gross tonnage.
(a) Purpose. This section lists spaces
which are exempt from inclusion in
gross tonnage.
(b) Spaces on or above the line of the
uppermost complete deck. The following
spaces or portions of spaces on or above
the line of the uppermost complete
deck are exempt if the spaces or portions are reasonable in extent and
adapted and used exclusively for the
purpose indicated:
(1) Spaces for anchor gear, including
capstan, windlass, and chain locker,
are exempt.
(2) Companions and booby-hatches
protecting stairways or ladderways
leading to spaces below are exempt,
whether or not the spaces below are exempt.
(3) Galley or other spaces fitted with
a range or oven for cooking food to be
consumed on board the vessel are exempt.
(4) Spaces designed to provide light
or air to propelling machinery are exempt, as follows:
(i) When propelling machinery is located entirely on or above the line of
the uppermost complete deck, the entire propelling machinery space and all
fuel bunker spaces that are also located above that line are exempt as
light or air spaces. (See exception in
§ 69.121(d)(1) for framed-in spaces.)
(ii) When part of the propelling machinery projects above the line of the
uppermost complete deck into a space
used exclusively to provide light or air
to the propelling machinery, the entire
space is exempt as light or air space.
When any portion of this space is used
for purposes other than providing light
or air, only the portion of the space
used for light or air, the space occupied
by the propelling machinery itself, and
a propelling machinery working space
allowance under § 69.121 limited to two
feet, if available, on each side of the
propelling machinery are exempt.
(iii) Any part of an escape shaft, or a
companion sheltering an escape shaft,
above the line of the uppermost complete deck is exempt as light or air
space.
(iv) Space that would otherwise be
exempt as a light or air space is not exempt when propelling machinery is

boxed-in and does not extend above the
line of the uppermost complete deck.
Any portion of the boxed-in space
above the line of the uppermost complete deck is exempt.
(5) Skylights affording light or air to
a space below, other than to propelling
machinery spaces. Space immediately
below the line of the deck on which a
skylight is located is exempt only
when there is an opening in the next
lower deck directly below the skylight
to permit light or air to an even lower
deck.
(6) Machinery spaces, other than for
propelling machinery under § 169.121.
(7) Spaces for steering gear.
(8) Water closet spaces that are fitted
with at least a toilet and are intended
for use by more than one person.
(9) The space in a wheelhouse necessary for controlling the vessel.
(c) Passenger spaces. (1) As used in
this section, the term ‘‘passenger’’ includes officers and enlisted men on
military vessels who are not assigned
ship’s duties and not entered on the
ship’s articles.
(2) As used in this section, ‘‘passenger space’’ means a space reserved
exclusively for the use of passengers
and includes, but is not limited to,
berthing areas, staterooms, bathrooms,
toilets,
libraries,
writing
rooms,
lounges, dining rooms, saloons, smoking rooms, and recreational rooms. The
space need not be part of or adjacent to
a berthing area to be considered a passenger space.
(3) A passenger space located on or
above the first deck above the uppermost complete deck is exempt from
gross tonnage.
(4) A passenger space located on the
uppermost complete deck is exempt
from gross tonnage only when it has no
berthing accommodations and is an
open structure under paragraph (d) of
this section.
(d) Open structures. (1) Structures
that are located on or above the line of
the uppermost complete deck that are
under cover (sheltered) but open to the
weather are exempt from gross tonnage.
(2) A structure is considered ‘‘open to
the weather’’ under paragraph (d)(1) of

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Coast Guard, Dept. of Homeland Security
this section when an exterior end bulkhead of the structure is open and, except as provided in paragraphs (d)(4),
(d)(5), and (d)(6) of this section, is not
fitted with any means of closing. To be
considered ‘‘open to the weather’’, the
end bulkhead must not have a coaming
height of more than two feet in way of
any required opening and have one of
the following:
(i) Two openings, each at least three
feet wide and at least four feet high in
the clear, one on each side of the centerline of the structure.
(ii) One opening at least four feet
wide and at least five feet high in the
clear.
(iii) One opening at least 20 square
feet in the clear with a breadth in excess of four feet and a height of not less
than three feet.
(3) A compartment within an open
structure is considered open to the
weather only when an interior bulkhead of that compartment has an opening or openings that meet the requirements for end bulkheads under paragraphs (d)(2)(i) through (d)(2)(iii) of
this section. Other compartments within the structure are not considered
open to the weather.
(4) An interior or exterior opening
that is temporarily closed by shifting
boards dropped into channel sections at
the sides of the opening is considered
open to the weather if battening,
caulking, or gaskets of any material
are not used.
(5) An interior or exterior opening
that is temporarily closed by cover
plates or boards held in place only by
hook bolts (see § 69.123, Figure 12) is
considered open to the weather—
(i) If hook bolts used to secure cover
plates or boards are spaced at least one
foot apart and hook over a stiffener installed around the perimeter of the
opening;
(ii) If the cover plates or boards fit
tightly against the bulkhead; and
(iii) If battening, caulking, or gaskets of any material are not used.
(6) An interior or exterior opening
that is temporarily closed by cover
plates or boards held in place only by
bolts and crosspieces is considered open
to the weather—
(i) If the bolts are not installed
through the bulkhead;

§ 69.117

(ii) If the bolts and crosspieces are
not held in place by cleats or other attachments to or through the bulkhead;
(iii) If the cover plates or boards fit
tightly against the bulkhead; and
(iv) If battening, caulking, or gaskets
of any material are not used.
(7) A structure with its aft end entirely open from the under side of its
overhead stiffeners down to the deck,
to the line of the deck, or to a coaming
not exceeding three inches in height
and open athwartship between the inboard faces of the side stiffeners is considered open to the weather. The opening may be covered by a wire mesh
screen or temporarily closed by canvas
secured at the top and lashed or buttoned in place.
(e) Open space between the shelter deck
and the next lower deck. (1) Space that
is between the shelter deck and the
next lower deck and that is under cover
(sheltered) but open to the weather is
exempt from gross tonnage when all
openings in the uppermost complete
deck are provided with a watertight
means of closing.
(2) A space is considered ‘‘open to the
weather’’ under paragraph (e)(1) of this
section when the shelter deck above
the space has a middle line opening
which conforms to the following:
(i) The middle line opening must be
at least four feet long in the clear and
at least as wide as the after cargo
hatch on the shelter deck, but not less
than one-half the width of the vessel at
the midpoint of the length of the opening. The opening may have rounded
corners not exceeding a nine inch radius. When a greater radius is required
by the Coast Guard or a Coast Guard
recognized classification society under
§ 42.05–60 of this chapter, notification of
that requirement must be submitted to
the Commandant.
(ii) The middle line opening must be
located so that the distance between
the aft edge of the middle line opening
and the vessel’s stern is not less than
one-twentieth of the tonnage length of
the vessel and the distance between the
fore edge of the opening and the vessel’s stem is not less than one-fifth of
the tonnage length of the vessel.
(iii) The middle line opening must
not be within a structure of any type.

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§ 69.117

46 CFR Ch. I (10–1–09 Edition)

(iv) If the middle line opening is
guarded by rails or stanchions, the
rails and stanchions must not be used
to secure or assist in securing a cover
over the opening.
(v) The coaming of the middle line
opening must not exceed one foot mean
height above the shelter deck. Bolts
must not pass through the stiffeners or
flanges on the coaming, nor may there
be any other attachments on the coaming for fastening a cover. Portable
wood covers may be fitted over the
middle line opening if held in place
only by lashings fitted to the under
side of the covers. Metal covers may be
fitted if held in place only by hook
bolts spaced not less than 18 inches
apart that pass through the cover and
hook over angle stiffeners or flanges
fitted to the outside of the coaming.
(vi) The space below the middle line
opening must have a minimum length
of four feet throughout its entire
breadth and height and be in the clear
at all times.
(vii) A scupper having a five inch
minimum inside diameter and fitted
with a screw down non-return valve
geared to and operated from the shelter
deck must be fitted on each side of the
upper deck in way of the middle line
opening.
(3) When the shelter deck space forward or aft of the middle line opening
is divided by interior bulkheads, only
those compartments with at least two
openings that progress to the middle
line opening are considered ‘‘open to
the weather’’ under paragraph (e)(1) of
this section. Each required opening
must be at least three feet wide and at
least four feet high in the clear, must
not have a coaming height of more
than two feet, and must not be fitted
(except as provided in paragraphs
(d)(4), (d)(5), and (d)(6) of this section)
with any means of closing. Other compartments within the shelter deck
space are not considered ‘‘open to the
weather’’ under paragraph (e)(1) of this
section.
(f) Water ballast spaces. A space, regardless of location, adapted only for
water ballast and not available for
stores, supplies, fuel, or cargo (other
than water to be used for underwater
drilling, mining, and related purposes,
including production), upon request,

may be exempt from gross tonnage if
the following are met:
(1) The space must be available at all
times only for water ballast that is
piped through a system independent of
other systems (except fire fighting and
bilge suction systems). Pumps, pipes,
and other equipment for loading and
unloading water ballast must be of a
size suitable for the efficient handling
of the water ballast within a reasonable time frame. All manholes providing access to a water ballast space
must be oval or circular and not greater than 34 inches in diameter. Except
for those on a deck exposed to the
weather, the manholes may have a coaming not exceeding six inches in
height. Existing hatches over spaces
being converted to water ballast spaces
must have a watertight cover plate
welded to the hatch and a manhole, as
described in this paragraph, fitted in
the plating.
(2) The primary purpose of the water
ballast must be to afford a means of
maintaining the vessel’s stability, immersion, trim, pre-loading conditions,
or seakeeping capabilities.
(3) If the space is in a vessel that is
subject to inspection under 46 U.S.C.
3301, the space must be considered
when determining the adequacy of the
vessel’s stability under 46 CFR chapter
I.
(4) If the total of all water ballast
spaces to be exempted from gross tonnage exceeds 30 percent of the vessel’s
gross tonnage (as calculated under this
subpart without any allowance for
water ballast), a justification of the operating conditions that require the
water ballast must be submitted to the
measuring organization for approval.
Although a single condition may justify all water ballast spaces, several
conditions may be necessary in other
cases. However, a particular tank is
not justified by a condition if another
tank already justified by another condition could be used as effectively. The
justification must—
(i) Designate the vessel’s service;
(ii) Explain for what purpose under
paragraph (f)(2) of this section the
water ballast is being used;
(iii) Provide the calculations required in paragraphs (f)(4)(vi) through
(f)(4)(ix) of this section for those uses

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Coast Guard, Dept. of Homeland Security
on a form similar to Coast Guard Stability Test Form CG–993–9;
(iv) Include the capacity, tank arrangement, and piping plans for the
vessel;
(v) Include a statement certifying
that the space will be used exclusively
for water ballast as prescribed by this
section;
(vi) If water ballast is used for stability, describe each loading condition
and the resultant metacentric height
(GM) and include calculations;
(vii) If water ballast is used for immersion or trim, describe those conditions and include loading and trim calculations;
(viii) If water ballast is used for preloading, describe how it is used and include strength and weight calculations;
and
(ix) If water ballast is used for
seakeeping, describe each loading condition, GM, period of roll, and, if speed
is involved, speed versus trim and draft
and include calculations.
(5) If the water ballast space or its
use, purpose, or piping are changed, the
vessel owner or operator must report
the change promptly to a measurement
organization listed in § 69.15 for a determination as to whether a tonnage remeasurement is required.
(g) Methods for measuring exempt
spaces. (1) If the exempt space is located within the superstructure, the
exempt space is measured using the
same procedures used to measure superstructure tonnage under § 69.113.
(2) If the exempt space is located between-deck, the space is measured
using the same procedures used for between-deck tonnage under § 69.111(c),
except that the length of the exempt
space is divided into the even number
of spaces most equal to the number of
spaces into which the between-deck
was divided.
(3) If the exempt space is located
under-deck, the space is measured
using the same procedures used for
under-deck tonnage under § 69.109, except that the length of the exempt
space is divided into the even number
of spaces most equal to the number of

§ 69.119

spaces into which the under-deck was
divided.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54
FR 40240, Sept. 29, 1989; CGD 97–057, 62 FR
51045, Sept. 30, 1997; CGD 95–028, 62 FR 51203,
Sept. 30, 1997; USCG–1999–5118, 64 FR 47404,
Aug. 31, 1999]

§ 69.119 Spaces deducted from gross
tonnage.
(a) Purpose. This section lists the requirements for spaces (other than propelling machinery spaces under § 69.121)
which, though included in calculating
gross tonnage (i.e., are not exempt
under § 69.117), are deducted from gross
tonnage in deriving net tonnage.
(b) General. (1) A deductible space
must be used exclusively for, and be
reasonable in size for, its intended purpose.
(2) When a space is larger than necessary for the safe and efficient operation of deductible equipment, only the
space occupied by the equipment plus a
two foot maximum working space on
each side of the equipment, if available, is deductible.
(3) Space specified in this section
may be located anywhere within the
vessel, unless otherwise specified.
(c) Anchor gear. A space below the
line of the uppermost complete deck
occupied by the anchor gear, capstan,
windlass, and chain locker is deductible. A fore peak used exclusively as
chain locker is measured by the method prescribed under § 69.117(g)(3).
(d) Boatswain’s stores. A space containing oils, blocks, hawsers, rigging,
deck gear, or other boatswain’s stores
for daily use is deductible. The maximum deduction allowed for vessels
less than 100 gross tons is one ton and,
for vessels 100 gross tons or over, is one
percent of the gross tonnage, not to exceed 100 tons.
(e) Chart room. A space for keeping
charts and nautical instruments and
for plotting the vessel’s course is deductible. For a combined wheelhouse
and chart room, that part not exempted as wheelhouse under § 69.117(b)(9) is
deductible. For small vessels in which
the only space for a chart room is in a
cabin or saloon, one half the space not
to exceed 1.5 tons is deductible as chart
room.

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§ 69.119

46 CFR Ch. I (10–1–09 Edition)

(f) Donkey engine and boiler. Donkey
engine and boiler space is deductible
when connected with the main (noncargo) pumps of the vessel, except as
follows:
(1) If the space is within the engine
room or within the casing above the
engine room and if the donkey engine
is an auxiliary to the main propelling
machinery, the space is an engine room
deduction under § 69.121(b).
(2) If the space is above the line of
the uppermost complete deck and if
the donkey engine is not an auxiliary
to the main propelling machinery, the
space is exempt under § 69.117(b).
(g) Spaces for the exclusive use of officers or crew. (1) The following spaces,
regardless of their location (unless otherwise noted), are deductible if not
used by passengers:
(i) Sleeping rooms.
(ii) Bathrooms with a bath tub or
shower but without a water closet.
(iii) Water closets below the line of
the uppermost complete deck serving
more than one person, with or without
a bath tub or shower. Water closets, regardless of location, that serve only
one person or that are accessible only
through a stateroom or bedroom serving one person are considered as part of
the space they serve and are deductible
only if that space is deductible.
(iv) Clothes drying rooms.
(v) Drinking water filtration or distilling plant below the line of the uppermost complete deck.
(vi) Hospitals.
(vii) Mess rooms.
(viii) Office of the chief engineer.
(ix) Oil skin lockers.
(x) Pantries.
(xi) Recreation rooms.
(xii) Smoking rooms.
(xiii) Galleys below the line of the
uppermost complete deck.
(2) Shops for engineers, carpenters,
plumbers, or butchers and offices for
clerks, pursers, or postmasters are not
deductible, wherever located.
(h) Master’s cabin. The master’s sleeping room, dressing room, bathroom, observation room, reception room, sitting
room, water closet, and office are deductible.
(i) Radio room. Spaces in which radio
apparatus is installed and messages are
sent and received and which may pro-

vide off-duty operator accommodations
are deductible.
(j) Steering gear. Spaces for steering
gear below the line of the uppermost
complete deck are deductible.
(k) Generators. Spaces for generators
below the line of the uppermost complete deck are deductible regardless of
what space the generators serve. These
spaces may include other equipment
necessary for the generator’s operation.
(l) Pump room. Spaces below the line
of the uppermost complete deck containing pumps that are not capable of
handling cargo and that are not fuel oil
transfer pumps considered part of the
propelling
machinery
under
§ 69.121(b)(2)(v) are deductible.
(m) Sail stowage. A space for stowing
sails on a vessel propelled only by sails
is deductible up to two and one-half
percent of the vessel’s gross tonnage.
(n) Waste material space. (1) A tank or
collection space, regardless of location,
used for the carriage or collection of
sewage, garbage, galley waste, trash,
slop-oil mixture, tank cleaning residue,
bilge residue, or other waste material
generated aboard the vessel is deductible.
(2) Space below the line of the uppermost complete deck used exclusively to
separate, clarify, purify, or otherwise
process waste material generated
aboard the vessel is deductible.
(o) Passageways. A passageway or
companionway is deductible—
(1) If it serves deductible spaces only;
or
(2) If it serves deductible spaces and
is also the sole means of access to one
of the following non-deductible spaces:
(i) Lockers of less than two tons
each, containing medicine, linen, mops,
or other items for the free use of the
crew.
(ii) A ship’s office.
(iii) Spare rooms (not exceeding two)
used by a pilot, customs officer, reserve
engineer, or employee or agent of the
vessel’s owner or operator.
(p) Markings for deductible spaces. (1)
Each space deducted under this section

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Coast Guard, Dept. of Homeland Security
must be marked with the words ‘‘Certified lll’’ (inserting the space designation, such as ‘‘Seaman’’, ‘‘Generator’’, Office of Chief Engineer’’, ‘‘Hospital’’, or ‘‘Anchor Gear’’). If a deductible space berths more than one crew
member, the marking must indicate
the number of crew members berthed,
such as ‘‘Certified lll Seamen’’ (inserting the number of crew).
(2) The abbreviations ‘‘Cert.’’ for
‘‘certified’’ and ‘‘W.C.’’ for ‘‘water closet’’ may be used.
(3) The markings must be in Roman
letters and Arabic numerals at least 1⁄2
inch in height, must be painted in a
light color on a dark background, must
be embossed, center-punched, carved,
or permanently cut in a bulkhead or
metal plate, and must be placed in a
legible location over a doorway on the
inside of the space. A metal plate, if
used, must be permanently fastened in
place by welding, riveting, lock screws,
or a Coast Guard-approved bonding
agent.
(q) Method for measuring deductible
spaces. (1) A rectangular space must be
measured by taking the product of its
length, breadth, and height.
(2) A space with curved sides on or
above the tonnage deck is measured according to § 69.109.
(3) Space less than 15 feet in length
may be measured by any practical
method.
(4) Spaces below the tonnage deck exceeding 15 feet in length and bounded
by a curved surface conforming to the
side of the vessel must be measured by
the formula used for measuring the superstructure under § 69.113.
(5) The height of a space located on a
platform in the hull must be measured
from the top of the bottom hull frames,
if the platform is used only to form a
flat surface at the bottom of the space,
if the platform is not more than one
foot above the top of the bottom
frames, and if the space below the platform is not usable.
(6) The height of a space is measured
through any ceiling, paneling, false
overhead, or other covering, to the
space’s structural boundary, unless the

§ 69.121

space enclosed by the covering is available for a non-deductible use.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54
FR 40240, Sept. 29, 1989; CGD 92–058, 57 FR
59938, Dec. 17, 1992]

§ 69.121

Engine room deduction.

(a) General. The engine room deduction is either a percentage of the vessel’s total propelling machinery spaces
or a percentage of the vessel’s gross
tonnage.
(b) Propelling machinery spaces. (1)
Propelling machinery spaces are the
spaces occupied by the main propelling
machinery and auxiliary machinery
and spaces reasonably necessary for
the operation and maintenance of the
machinery.
Propelling
machinery
spaces do not include spaces for fuel
tanks, spaces exempt from gross tonnage under § 69.117, and spaces not used
or not available for use in connection
with the propelling machinery.
(2) Propelling machinery spaces are—
(i) Space below the crown. The crown
is the top of the main space of the engine room to which the heights of the
main space are taken. The crown is either the underside of a deck or, if the
side bulkheads are sloping, the uppermost point at which the slope terminates. (See § 69.123, figures 13 and 14.)
(ii) Framed-in space located between
the crown and the uppermost complete
deck and used for propelling machinery
or for the admission of light or air to
propelling machinery spaces. (See
§ 69.123, figures 13 and 14.)
(iii) Shaft tunnel space and thrust
block recess space.
(iv) Space below the uppermost complete deck used for escape shafts or
trunked ladderways leading from the
aft end of the shaft tunnel to the deck
above.
(v) Space containing a fuel oil transfer pump located in a separate space
and not used for bunkering the vessel.
When the pump serves both ballast and
fuel oil, only one-half of the pump’s
space is considered a propelling machinery space.
(vi) Spaces containing fuel oil settling tanks used solely for the main
boilers. The space must not exceed one
percent of the vessel’s gross tonnage.

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WReier-Aviles on DSKGBLS3C1PROD with CFR

§ 69.121

46 CFR Ch. I (10–1–09 Edition)

(vii) Spaces for engineers’ stores and
workshops located below the uppermost complete deck and either open to
a propelling machinery space or separated from a propelling machinery
space only by a screen bulkhead. The
space must not exceed three-quarters
of one percent of the vessel’s gross tonnage.
(viii) Framed-in space located above
the line of the uppermost complete
deck and used for propelling machinery
or for the admission of light or air to a
propelling machinery space, when requested under paragraph (d) of this section.
(ix) If the propelling machinery is
boxed-in below the tonnage deck, the
boxed-in space plus the spaces outside
of the boxing for the shaft, auxiliary
engines, and related propelling machinery. If a portion of the boxed-in space
extends above a platform or partial
deck that is below the uppermost complete deck, that portion is also considered part of the propelling machinery
space.
(c) Methods for measuring propelling
machinery spaces. (1) If the propelling
machinery space is bulkheaded off or is
not larger than necessary for the safe
operation and maintenance of the propelling machinery, the entire space, or,
if bulkheaded off, the portion bulkheaded off, is measured for the engine
room deduction.
(2) If the propelling machinery space
is not bulkheaded off or is larger than
necessary for the safe operation and
maintenance of the propelling machinery, only the space occupied by the
propelling machinery itself plus a
working space of two feet, if available,
on each side of the propelling machinery is measured for the engine room deduction. If the working space overlaps
another working space not related to
the propelling machinery, only onehalf of the overlapping working space
is included in the propelling machinery
space. The height of the working space
is measured as provided in paragraph
(c) of this section.
(3) If the propelling machinery is located in more than one space, each
space must be measured separately.
(4) If the propelling machinery is located in a space with a step in the bottom or side lines, each stepped portion

of the space must be measured separately.
(5) The length of a space under paragraph (c)(1) of this section is measured
from the bulkhead just forward of the
propelling machinery to the bulkhead
just aft of the propelling machinery.
The length of a space under paragraph
(c)(2) of this section is measured from
the forward edge of the working space
to the aft edge of the working space.
(6) If the boundaries of the propelling
machinery space form a rectangle, the
product of the length, breadth, and
height, divided by 100, is the tonnage of
the space.
(7) If the boundaries of the propelling
machinery space are continuous fair
lines, heights are measured at the fore
and aft ends and at the center of the
space from the bottom frames, floors,
or tank top of a double bottom up to
the line of the crown. A breadth is
measured at half-height of each height.
The product of the length, mean
breadth, and mean height, divided by
100, is the tonnage of the space.
(8) If the propelling machinery space
is in the aft end of the hull, extends
from side to side of the hull, and has a
continuous bottom line, the length of
the space is divided into the even number of equal parts most nearly equal to
the number of parts that the tonnage
length under § 69.109(g) was divided.
The tonnage is then calculated by the
same method used for calculating the
under-deck tonnage in § 69.109(l).
(9) The tonnage of a framed-in space
located between the crown and the uppermost complete deck and used for
propelling machinery or for the admission of light or air to the propelling
machinery space, is the product of its
length, breadth, and height, divided by
100.
(10) The tonnage of a shaft tunnel, or
a thrust block recess, having a flat top
is the product of its length, breadth,
and height, divided by 100. If the shaft
tunnel or thrust block recess top is not
flat, the space above must be calculated by using the appropriate geometrical formula. If the space aft of
the shaft tunnel extends from side to
side of the vessel, the tonnage of the
space is found by the formula for measuring peak tanks in § 69.109(l).

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Coast Guard, Dept. of Homeland Security

WReier-Aviles on DSKGBLS3C1PROD with CFR

(11) The length and breadth of the
space for a shaft tunnel, or a thrust
block recess, when not cased is that
which is necessary for maintenance of
the shaft. The height allowed for
thrust block recess space must not exceed seven feet. The mean height allowed for the shaft tunnel space must
not exceed six feet. In a multi-screw
vessel where the shaft tunnel or thrust
block recess space is open from side to
side, measure only the space used for
purposes of propelling the vessel.
(12) When the propelling machinery is
on a bed at the vessel’s bottom, the
height of the propelling machinery
space is measured from the top of the
bottom frames or floors.
(d) Request to treat certain framed-in
engine room spaces as part of a propelling
machinery space. (1) Under § 69.117(b)(4),
framed-in spaces located above the line
of the uppermost complete deck and
used for propelling machinery or for
admitting light or air to a propelling
machinery space are exempt from inclusion in gross tonnage. However,
upon written request to a measurement
organization listed in § 69.15, the vessel
owner may elect to have these spaces
included in calculating gross tonnage,
then deducted from gross tonnage as
propelling machinery spaces under
paragraph (b)(2)(viii) of this section.
(2) The framed-in space must be safe,
seaworthy, and used only for propelling
machinery or for the admission of light
or air to the propelling machinery
space. The length of the space must not
exceed the length of the propelling machinery space and the breadth must
not exceed one-half of the extreme inside midship breadth of the vessel. Portions of the framed-in space that are
plated over are not included in the propelling machinery space.
(3) To exercise the option in paragraph (d)(1) of this section, all of the
framed-in space need not be treated as
propelling machinery space, but only

§ 69.123

that portion required to entitle the
vessel to have 32 percent of its gross
tonnage deducted as an engine room
deduction under paragraph (e) of this
section.
(e) Calculating the engine room deduction. (1) The engine room deduction is
based on a percentage of the vessel’s
gross tonnage or a percentage of the
total propelling machinery space.
(2) For vessels propelled in whole or
in part by screw—
(i) If the total propelling machinery
space is 13 percent or less of the vessel’s gross tonnage, deduct 32⁄13 times
the total propelling machinery space;
(ii) If the total propelling machinery
space is more than 13 but less than 20
percent of the vessel’s gross tonnage,
deduct 32 percent of the vessel’s gross
tonnage; or
(iii) If the total propelling machinery
space is 20 percent or more of the vessel’s gross tonnage, deduct either 32
percent of the vessel’s gross tonnage or
1.75 times the total propelling machinery space, whichever the vessel’s owner
elects.
(3) For vessels propelled in whole or
in part by paddle-wheel—
(i) If the total propelling machinery
space is 20 percent or less of the vessel’s gross tonnage, deduct 37⁄20 times
the total propelling machinery space;
(ii) If the total propelling machinery
space is more than 20 but less than 30
percent of the vessel’s gross tonnage,
deduct 37 percent of the vessel’s gross
tonnage; or
(iii) If the total propelling machinery
space is 30 percent or more of the vessel’s gross tonnage, deduct either 37
percent of the vessel’s gross tonnage or
1.5 times the total propelling machinery space, whichever the vessel’s owner
elects.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54
FR 40240, Sept. 29, 1989]

§ 69.123

Figures.

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§ 69.123

§ 69.123

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46 CFR Ch. I (10–1–09 Edition)

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§ 69.123

Coast Guard, Dept. of Homeland Security

Subpart D—Dual Measurement
System
§ 69.151 Purpose.
This subpart prescribes measurement
requirements for the assignment of either one gross and one net tonnage or
two gross and two net tonnages to vessels under the Dual Measurement System.
§ 69.153 Application of other laws.
(a) If a vessel is assigned two gross
tonnages under § 69.175(b), the higher
gross tonnage is the tonnage used when
applying inspection, manning, and load
line laws and regulations to the vessel.
(b) Tonnage marks are not to be construed as additional load line marks.
Whether or not a tonnage mark is submerged under § 69.171 has no effect on
the applicability of load line laws and
regulations.

WReier-Aviles on DSKGBLS3C1PROD with CFR

§ 69.155 Measurement requirements.
Except as otherwise required by this
subpart, the measurement requirements under the Standard Measurement System in subpart C of this part
apply to the measurement of vessels
under the Dual Measurement System.
§ 69.157 Definitions.
Terms used in this subpart that are
defined in § 69.103 have the same meaning as in § 69.103, except the terms listed below. As used in this subpart,—
Gross tonnage is defined in § 69.161(a).
Line for fresh and tropical waters
means
the
line
described
in
§ 69.177(b)(2).
Line of the second deck means the line
described in § 69.181.
Line of the uppermost complete deck
means a longitudinal line at the underside of the uppermost complete deck
or, if that deck is stepped, the longitudinal line of the underside of the lowest
portion of that deck parallel with the
upper portions of that deck.
Net tonnage is defined in § 69.161(b).
Second deck means the next deck
below the uppermost complete deck
that meets the following:
(a) Is continuous athwartships and in
a fore-and-aft direction at least between peak bulkheads, even though the
deck may have interruptions or openings due to propelling machinery

§ 69.163

spaces, to hatch and ventilation trunks
not extending longitudinally completely between main transverse bulkheads, to ladder and stairway openings,
to chain lockers, or to cofferdams.
(b) Is fitted as an integral and permanent part of the vessel.
(c) Has proper covers to all main
hatchways.
(d) Does not have steps the total of
which exceed 48 inches in height.
Tonnage deck means, for a vessel with
only one deck, the uppermost complete
deck and, for a vessel with a second
deck, the second deck.
Tonnage mark means the line described in § 69.177(a)(2).
§ 69.159 Application for measurement
services.
Applications for measurement services under this subpart must include
the application information and plans
required for the Standard Measurement
System under § 69.105. The application
must indicate whether a line for fresh
and tropical waters is requested under
§ 69.177(b) and, for vessels with more
than one deck, indicate whether one or
two sets of tonnages are desired under
§ 69.175.
§ 69.161

Gross and net tonnages.

(a) Gross tonnage means the tonnage
of a vessel, less certain spaces exempt
under § 69.169, and is the sum of the following:
(1) Under-deck tonnage (§ 69.163).
(2) Between-deck tonnage (§ 69.165)
(3) Superstructure tonnage (§ 69.167)
(4) Excess hatchway tonnage (§ 69.115)
(5) Tonnage of framed-in propelling
machinery spaces included in calculating gross tonnage (§ 69.121(d)(1)).
(b) Net tonnage means gross tonnage
less deductions under § 69.119 and
§ 69.121.
§ 69.163

Under-deck tonnage.

The under-deck tonnage provisions in
§ 69.109 apply; except that, under the
Dual Measurement System, spaces between the line of the tonnage deck and
the tonnage deck itself due to a
stepped tonnage deck are included in
under-deck tonnage.

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§ 69.165
§ 69.165

46 CFR Ch. I (10–1–09 Edition)
Between-deck tonnage.

The between-deck tonnage provisions
in § 69.111 apply, except that, under the
Dual Measurement System, betweendeck space extends from the tonnage
deck to the uppermost complete deck,
rather than from the line of the tonnage deck to the line of the uppermost
complete deck.
§ 69.167

Superstructure tonnage.

The superstructure tonnage provisions in § 69.113 apply; except that,
under the Dual Measurement System,
spaces between the line of the uppermost complete deck and the uppermost
complete deck itself due to a stepped
uppermost complete deck are not included in the superstructure tonnage.
§ 69.169 Spaces exempt from inclusion
in gross tonnage.
The tonnage of the following spaces
is exempt from inclusion in gross tonnage:
(a) Spaces listed in § 69.117(b) when located within the superstructure.
(b) Spaces listed in § 69.117(c)(1)
through (c)(3) when located above, but
not on, the uppermost complete deck.
(c) Spaces listed in § 69.117(f), regardless of location.
(d) Spaces available for carrying dry
cargo and stores when located on or
above the uppermost complete deck.
(e) When a vessel is assigned a tonnage mark and the tonnage mark is
not submerged,—
(1) Spaces listed in § 69.117(b) when located between the uppermost complete
deck and the second deck;
(2) Spaces listed in § 69.117(c)(1)
through (c)(3) when located on the uppermost complete deck; and
(3) Spaces available for carrying dry
cargo and stores when located between
the uppermost complete deck and the
second deck.

WReier-Aviles on DSKGBLS3C1PROD with CFR

[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 92–058, 57 FR 59938, Dec. 17,
1992]

§ 69.171 When the tonnage mark is
considered submerged.
For the purpose of this subpart, a
tonnage mark is considered submerged
when—

(a) In salt or brackish water, the
upper edge of the tonnage mark is submerged; and
(b) In fresh or tropical water, the
upper edge of the line for fresh and
tropical waters is submerged.
§ 69.173 Tonnage assignments for vessels with only one deck.
A vessel without a second deck is assigned only one gross and one net tonnage. In calculating the gross tonnage,
only the exemptions in § 69.169 (a)
through (d) are allowed. Markings
under § 69.177 are not permitted on
these vessels.
§ 69.175 Tonnage assignments for vessels with a second deck.
(a) At the option of the vessel owner,
a vessel having a second deck is assigned either two gross and two net
tonnages or one gross and one net tonnage.
(b) If two gross and two net tonnages
are assigned, the higher tonnages (i.e.
those based only on exemptions under
§ 69.169 (a) through (d)) are applicable
when the upper edge of the tonnage
mark is submerged and the lower tonnages (i.e. those based only on all exemptions under § 69.169) are applicable
when the upper edge of the tonnage
mark is not submerged.
(c) If only the low gross and low net
tonnages, as calculated under paragraph (b) of this section, are assigned,
these tonnages are applicable at all
times. On these vessels, the tonnage
mark must be located in accordance
with § 69.177(a)(6) at the level of the uppermost part of the load line grid.
§ 69.177

Markings.

(a) Tonnage mark. (1) All vessels with
a second deck that are measured under
the Dual Measurement System must
have, on each side of the vessel, a tonnage mark, and an inverted triangle
identifying the tonnage mark, as described and located under this section.
(See the figure in § 69.183(a).) Vessels
with only one deck are not assigned
markings under this section.
(2) The tonnage mark is a horizontal
line 15 inches long and one inch wide.
The tonnage mark must be designated
by a welded bead or other permanent

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Coast Guard, Dept. of Homeland Security
mark 15 inches long placed along the
top edge of the tonnage mark.
(3) Above the tonnage mark is placed
an inverted equilateral triangle, each
side of which is 12 inches long and one
inch wide, with its apex touching the
upper edge of the center of the tonnage
mark.
(4) If the vessel has a load line mark,
the longitudinal location of the center
of the tonnage mark must be between
21 inches and six feet six inches aft of

§ 69.177

the vertical centerline of the load line
ring. (See the figures in § 69.183 (b) and
(c).) If the vessel does not have a load
line mark, the center of the tonnage
mark must be located amidships.
(5) Except as under paragraph (a)(6)
of this section, the upper edge of the
tonnage mark must be located below
the line of the second deck at the distance indicated in Table 69.177(a)(5).
(See the figure in § 69.183(b).)

TABLE 69.177(a)(5)—MINIMUM DISTANCE IN INCHES BETWEEN THE TONNAGE MARK AND THE LINE
OF THE SECOND DECK
L divided by D

WReier-Aviles on DSKGBLS3C1PROD with CFR

L (in feet)
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740

and under ........................................................
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12

13

14

15

16

2.0
3.2
4.7
6.3
8.0
9.9
11.8
13.9
16.0
18.3
20.7
23.2
25.9
28.7
31.7
34.7
38.0
41.3
44.8
48.2
51.5
54.8
58.4
62.1
65.9
69.8
73.7
77.5
81.2
84.9
88.4
91.8
95.2
98.4
101.6
104.8
107.9
111.0
114.0
117.0
120.0
122.9
125.7
128.6
131.4
134.2
136.9
139.6
142.3
144.9
147.5
150.1
152.7

2.0
2.0
2.0
3.3
4.8
6.4
8.1
9.9
11.7
13.7
15.8
18.0
20.4
22.9
25.5
28.3
31.1
34.1
37.2
40.3
43.4
46.5
49.9
53.4
57.0
60.7
64.4
68.1
71.6
75.1
78.4
81.6
84.8
87.8
90.8
93.8
96.8
99.7
102.5
105.3
108.0
110.7
113.4
116.1
118.7
121.2
123.8
126.3
128.8
131.3
133.7
136.1
138.5

2.0
2.0
2.0
2.0
2.1
3.5
4.9
6.5
8.1
9.8
11.7
13.6
15.7
17.9
20.2
22.7
25.3
27.9
30.7
33.5
36.4
39.4
42.6
46.0
49.5
53.0
56.5
60.0
63.4
66.7
69.9
72.9
75.9
78.8
81.6
84.4
87.2
90.0
92.6
95.2
97.8
100.4
102.9
105.4
107.8
110.2
112.8
115.0
117.3
119.6
121.8
124.0
126.2

2.0
2.0
2.0
2.0
2.0
2.0
2.1
3.5
4.9
6.4
8.1
9.8
11.6
13.6
15.7
17.9
20.2
22.6
25.0
27.7
30.4
33.3
36.4
39.6
42.9
46.3
49.7
53.0
56.2
59.4
62.4
65.3
68.1
70.9
73.6
76.3
78.9
81.5
84.0
86.5
88.9
91.3
93.7
96.1
98.3
100.6
102.9
105.1
107.3
109.4
111.5
113.6
115.7

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.1
3.5
4.9
6.4
8.1
9.8
11.7
13.6
15.7
17.9
20.1
22.6
25.2
27.9
30.9
33.9
37.1
40.4
43.7
46.9
50.0
53.0
55.9
58.7
61.4
64.0
66.6
69.2
71.7
74.2
76.5
78.9
81.2
83.5
85.8
88.0
90.1
92.2
94.3
96.4
98.5
100.5
102.5
104.5
106.5

17

18

19

20

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.1
3.5
4.9
6.5
8.2
9.9
11.8
13.8
15.8
18.1
20.6
23.2
26.0
29.0
32.1
35.2
38.4
41.5
44.5
47.4
50.2
52.9
55.5
58.0
60.5
62.9
65.3
67.7
69.9
72.1
74.4
76.6
78.7
80.8
82.8
84.8
86.8
88.8
90.8
92.7
94.6
96.5
98.3

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.1
3.6
5.0
6.6
8.3
10.1
11.9
14.0
16.4
19.0
21.7
24.6
27.6
30.6
33.7
36.7
39.6
42.4
45.1
47.7
50.2
52.6
55.0
57.3
59.6
61.9
64.0
66.2
68.3
70.4
72.4
74.4
76.3
78.3
80.2
82.1
83.9
85.7
87.5
89.3
91.5

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.2
3.7
5.2
6.8
8.4
10.4
12.7
15.2
17.8
20.6
23.5
26.5
29.5
32.4
35.2
37.9
40.5
43.0
45.4
47.8
50.1
52.3
54.5
56.7
58.8
60.8
62.8
64.8
66.8
68.7
70.6
72.4
74.2
76.0
77.8
79.5
81.2
82.9
84.5

2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.4
3.8
5.3
7.2
9.7
11.8
14.4
17.1
19.9
22.8
25.7
28.5
31.2
33.9
36.4
38.8
41.2
43.4
45.6
47.8
49.9
52.0
54.0
56.0
58.0
59.9
61.7
63.6
65.3
67.1
68.9
70.6
72.3
73.9
75.5
77.1
78.7

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§ 69.179

46 CFR Ch. I (10–1–09 Edition)

TABLE 69.177(a)(5)—MINIMUM DISTANCE IN INCHES BETWEEN THE TONNAGE MARK AND THE LINE
OF THE SECOND DECK—Continued
L divided by D
L (in feet)
750
760
770
780
790
800

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12

13

14

15

16

17

18

155.3
157.8
160.2
162.6
165.1
167.5

140.8
143.1
145.4
147.6
149.9
152.1

128.5
130.6
132.7
134.8
136.9
138.9

117.8
119.7
121.7
123.7
125.6
127.4

108.4
110.3
112.1
113.9
115.7
117.4

100.1
101.9
103.6
105.3
107.0
108.6

92,8
94.4
96.0
97.6
99.2
100.8

19

20

86.1
87.8
89.3
90.8
92.3
93.8

80.3
81.7
83.2
84.7
86.1
87.4

L=the length in feet of the line of the second deck at the centerline of the vessel from the inner surface of the frames at the
vessel’s stem to the inner surface of the frames at the vessel’s stern.
D=The vertical distance in feet from the top of the flat keel of the vessel to the line of the second deck.
EXAMPLE (1) For a vessel in which L=450 feet and L/D=15 feet, read down from the L/D column ‘‘15’’ and to the right on the
column ‘‘450’’ to where the two columns intersect at 39.6. The tonnage mark must be located 39.6 inches below the line of the
second deck.
EXAMPLE (2) If L or L/D is an intermediate number, the distance ‘‘a’’ between the tonnage mark and the line of the second
deck must be obtained by linear interpolation. For a vessel in which L=424.80 feet and L/D=15.17:
L
Table 420 ......................
Actual 424.80 ................
Table 430 ......................

Table L/
D=15
30.4
r
33.3

Actual L/
D=15.17
................
a
................

Table L/
D=16
25.2
s
27.9

WReier-Aviles on DSKGBLS3C1PROD with CFR

Interpolation:
r=30.4+0.48 (33.3¥30.4)=31.79
s=25.2+0.48 (27.9¥25.2)=26.50
a=r¥0.17 (r¥s)=31.79¥0.17 (31.79¥26.50)=30.89 inches

(6) For the following vessels with a
load line mark, the upper edge of the
tonnage mark must be located at the
level of the uppermost part of the load
line grid:
(i) Vessels assigned only one gross
and one net tonnage under § 69.175(c).
(ii) Vessels for which a load line assigning authority certifies that the
vessel’s load line mark was located as
though the second deck were the
freeboard deck.
(b) Line for fresh and tropical waters.
(1) Except as under paragraph (b)(4) of
this section, a horizontal line for fresh
and tropical waters may be assigned at
the vessel owner’s request.
(2) The line must be nine inches long
and one inch wide and located above
and to the left of the tonnage mark at
a distance equal to one forty-eighth of
the distance from the top of the flat
keel to the tonnage mark. The tonnage
mark and the line for fresh and tropical waters must be connected by a
vertical line one inch wide. (See the
figure in § 69.183(a).)
(3) The line for fresh and tropical waters must be designated by a welded
bead or other permanent mark nine
inches long placed along the upper edge
of the line.
(4) For vessels with a load line mark,
if the load line assigning authority cer-

tifies that the load line mark was located as though the second deck were
the freeboard deck, a line for fresh and
tropical waters must not be placed on
the vessel.
(c) Freeboard deck mark. A vessel assigned two gross and two net tonnages
which has more than one deck and no
load line mark assigned must have a
mark on each side of the vessel with
the same dimensions and location as
the freeboard deck line mark under
§ 42.13–20 of this chapter, except that
the mark must be located directly
above the tonnage mark.
(d) The line of the second deck. The
line of the second deck must not be
marked on the side of the vessel.
(e) Color of markings. All markings
under this section must be maintained
in either a light color on a dark background or a dark color on a light background.
§ 69.179

Certification of markings.

(a) Before a certificate of measurement is issued for a vessel requiring a
tonnage mark, a certification by a
measurement organization under § 69.15
that all markings meet the requirements of this subpart is required.
(b) The Coast Guard, at any time,
may verify markings under this subpart.
§ 69.181 Locating the line of the second
deck.
(a) If the second deck is not stepped,
the line of the second deck is the longitudinal line of the underside of the second deck at the side of the hull.

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Coast Guard, Dept. of Homeland Security

vided by the total length of the second
deck times the height that the step is
above the height of the amidship portion of the second deck; and
(2) Minus, for each stepped portion of
the second deck lower than the second
deck at amidships, a distance equal to
the length of the stepped portion divided by the total length of the second
deck times the height that the
amidship portion of the second deck is
above the height of the step.

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(b) If the second deck is stepped (as
in the examples following this paragraph), the line of the second deck is a
longitudinal line extended parallel to
each portion of the second deck and located at the height of the underside of
the amidships portion of the second
deck at the side of the hull—
(1) Plus, for each stepped portion of
the second deck higher than the second
deck at amidships, a distance equal to
the length of the stepped portion di-

§ 69.181

§ 69.183
§ 69.183

46 CFR Ch. I (10–1–09 Edition)
Figures.

(b) Tonnage mark location if the load
line mark is not placed as though the second deck were the freeboard deck.

k=a distance between 21 inches and six feet
six inches.
a=distance derived from Table 69.177(a)(5).

(c)—Tonnage mark location if the load
line mark is placed as though the second
deck were the freeboard deck.

EC01FE91.047

W=1⁄48 of the distance from the top of the flat
keel
to
the
tonnage
mark.
(See
§ 69.177(b)(2).)

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(a) Tonnage mark with an equilateral
triangle and a line for fresh and tropical
waters.

Coast Guard, Dept. of Homeland Security

k=a distance between 21 inches and six feet
six inches.
a=the distance between the line of the second deck and the uppermost part of the
load line grid.

Subpart E—Simplified
Measurement System
§ 69.201

Purpose.

This subpart prescribes the procedures for measuring a vessel under the
Simplified Measurement System described in 46 U.S.C. chapter 145, subchapter III.
Definitions.

As used in this subpart and in Coast
Guard Form CG–5397 under § 69.205—
Overall breadth means the horizontal
distance taken at the widest part of
the hull, excluding rub rails, from the
outboard side of the skin (outside
planking or plating) on one side of the
hull to the outboard side of the skin on
the other side of the hull.
Overall depth means the vertical distance taken at or near midships from a
line drawn horizontally through the
uppermost edges of the skin (outside
planking or plating) at the sides of the
hull (excluding the cap rail, trunks,
cabins, and deckhouses) to the outboard face of the bottom skin of the

hull, excluding the keel. For a vessel
that is designed for sailing and has a
keel faired to the hull, the keel is included in ‘‘overall depth’’ if the distance to the bottom skin of the hull
cannot be determined reasonably.
Overall length means the horizontal
distance between the outboard side of
the foremost part of the stem and the
outboard side of the aftermost part of
the stern, excluding rudders, outboard
motor brackets, and other similar fittings and attachments.
Registered breadth means—
(a) For a single-hull vessel, the vessel’s overall breadth; and
(b) For a multi-hull vessel, the horizontal distance taken at the widest
part of the complete vessel between the
outboard side of the skin (outside
planking
or
plating)
on
the
outboardmost side of one of the
outboardmost hulls to the outboard
side of the skin on the outboardmost
side of the other outboardmost hull,
excluding rubrails.
Registered depth means—
(a) For a single-hull vessel, the vessel’s overall depth; and
(b) For a multi-hull vessel, the overall depth of the deepest hull.
Registered length means—
(a) For a single-hull vessel, the vessel’s overall length; and

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§ 69.203

§ 69.203

§ 69.205

46 CFR Ch. I (10–1–09 Edition)

(b) For a multi-hull vessel, the horizontal distance between the outboard
side of the foremost part of the stem of
the foremost hull and the outboard side
of the aftermost part of the stern of
the aftermost hull, excluding fittings
or attachments.
Vessel designed for sailing means a vessel which has the fine lines of a sailing
craft and is capable of being propelled
by sail, whether or not the vessel is
equipped with an auxiliary motor, a
decorative sail, or a sail designed only
to steady the vessel.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989; 54
FR 40240, Sept. 29, 1989; USCG–1999–6216, 64
FR 53225, Oct. 1, 1999]

§ 69.205 Application for measurement
services.
To apply for measurement under the
Simplified Measurement System, the
owner of the vessel must complete either an Application for Simplified
Measurement (form CG–5397), or a
Builder’s Certification and First Transfer of Title (form CG–1261) which has
the information in Part III ‘‘Dimensions’’ completed, and submit it to the
National Vessel Documentation Center.
[CGD 95–014, 60 FR 31606, June 15, 1995]

§ 69.207

Measurements.

WReier-Aviles on DSKGBLS3C1PROD with CFR

(a) All lengths and depths must be
measured in a vertical plane at centerline and breadths must be measured in
a line at right angles to that plane. All
dimensions must be expressed in feet
and inches to the nearest half inch or
in feet and tenths of a foot to the nearest .05 of a foot.
(b) For a multi-hull vessel, each hull
must be measured separately for overall length, breadth, and depth and the
vessel as a whole must be measured for
registered length, breadth, and depth.

(c) The Coast Guard may verify dimensions of vessels measured under
this subpart.
§ 69.209 Calculation of tonnages.
(a) Gross tonnage. (1) Except as in
paragraphs (a)(2) through (a)(5) of this
section, the gross tonnage of a vessel
designed for sailing is one-half of the
product of its overall length, overall
breadth, and overall depth (LBD) divided by one hundred (i.e., 0.50 LBD/
100), and the gross tonnage of a vessel
not designed for sailing is 0.67 LBD/100.
(2) The gross tonnage of a vessel with
a hull that approximates in shape a
rectangular geometric solid (bargeshape) is 0.84 LBD/100.
(3) The gross tonnage of a multi-hull
vessel is the sum of all the hulls as calculated under this section.
(4) If the volume of the principal
deck structure of a vessel is as large as,
or larger than, the volume of the vessel’s hull, the volume of the principal
deck structure in tons of 100 cubic feet
is added to the tonnage of the hull to
establish the vessel’s gross tonnage.
The volume of the principal deck structure of a vessel is determined by the
product of its average dimensions.
(5) If the overall depth of a vessel designed for sailing includes the keel,
only 75 percent of that depth is used for
gross tonnage calculations.
(b) Net tonnage. (1) For a vessel having propelling machinery in its hull—
(i) The net tonnage is 90 percent of
its gross tonnage, if it is a vessel designed for sailing; or
(ii) The net tonnage is 80 percent of
its gross tonnage, if it is not a vessel
designed for sailing.
(2) For a vessel having no propelling
machinery in its hull, the net tonnage
is the same as its gross tonnage.
[CGD 87–015b, 54 FR 37657, Sept. 12, 1989, as
amended by CGD 97–057, 62 FR 51045, Sept. 30,
1997]

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INDEX
SUBCHAPTER G—DOCUMENTATION AND MEASUREMENT OF VESSELS
EDITORIAL NOTE: This listing is provided for informational purposes only. It is compiled and
kept current by the U.S. Coast Guard, Department of Homeland Security. This index is updated as of October 1, 2009.
Part, subpart, or section

A
Abstracts of Title, and Certificate of Ownership ...................................... Subpart T
Abstract of Title, issuance of ........................................................................... 67.301
Acceptable Title Evidence; Waiver ........................................................... Subpart E
Alteration of Certificate of Documentation..................................................... 67.311
Appendix A - Oath for Qualification of Corporation as a Citizen of the
United States Under the Act of Sept. 2, 1958 (46 U.S.C. 883-1) .......................... 68
Appendix A - Oath for Qualification of a Not-For-Profit Oil Spill Response Cooperative .......................................................................................... 68
Appendix B - Oath for Documentation of Vessels for Use By a Not-ForProfit Oil Spill Response Cooperative ............................................................. 68
Appendix B - Oath of Parent or Subsidiary Corporation Act of Sept. 2,
1958 (46 U.S.C. 883-1) ......................................................................................... 68
Applicability............................................................................................. 67.352, 69.3
Application by an 883-1 corporation to document a vessel ................................ 68.19
Application for Documentation, Exchange or Replacement of Certificate
of Documentation, or Return to Documentation: Mortgagee Consent;
Validation........................................................................................... Subpart K
Application for foreign rebuilding determination............................................ 67.177
Application for measurement services ...................... 69.17, 69.55, 69.105, 69.159, 69.205
Application for new vessel determination........................................................ 67.175
Application for Special Qualifications for Vessel Documentation ........... Subpart J
Application of other laws ................................................................................. 69.153
Application procedures; all cases ..................................................................... 67.141
Application to document a vessel ...................................................................... 68.35
Assignment of official number ......................................................................... 67.111
Assignments and Designations Required for Vessel Documentation ....... Subpart H
Association or joint venture .............................................................................. 67.37
Authorized measurement organizations ............................................................ 69.15

B
Between-deck tonnage ........................................................................... 69.111, 69.165
Build Requirements for Vessel Documentation........................................ Subpart F

WReier-Aviles on DSKGBLS3C1PROD with CFR

C
Calculation of tonnages.................................................................................... 69.209
Calculation of volumes ...................................................................................... 69.65
Cancellation; requirement and procedure ........................................................ 67.173
Captured vessels ............................................................................................... 67.134
Certification of markings................................................................................. 69.179
Certificate of Ownership, issuance of ............................................................... 67.303

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46 CFR Ch. I (10–1–09 Edition)
Cessation of qualifications ................................................................... 68.11, 68.05-13
Change in:
General partners of partnership...................................................................... 67.85
Legal name of owner....................................................................................... 67.87
Change of net tonnage ....................................................................................... 69.71
Citizenship requirements for limited coastwise endorsement ........................... 68.27
Citizenship Requirements for Vessel Documentation............................... Subpart C
Coastwise or Great Lakes endorsement............................................................. 67.19
Corporation........................................................................................................ 67.39

WReier-Aviles on DSKGBLS3C1PROD with CFR

D
Definitions .......................................................................................................... 67.3
Acknowledgment.............................................................................................. 67.3
Act.................................................................................................................... 68.3
Amidships ....................................................................................................... 69.53
Between-deck ................................................................................................ 69.103
Break............................................................................................................. 69.103
Camber .......................................................................................................... 69.103
Captured vessel ................................................................................................ 67.3
Cargo space ..................................................................................................... 69.53
Ceiling ........................................................................................................... 69.103
Certification of Documentation .............................................................. 67.3, 68.27
Citizen or Corporation...................................................................................... 68.3
Citizen ..................................................................................................... 67.3, 68.27
Coaming ........................................................................................................ 69.103
Coastwise trade ................................................................................................ 67.3
Commandant............................................................................................. 67.3, 69.9
Convention ....................................................................................................... 69.9
Convention Measurement System.................................................................... 69.9
Deckhouse ..................................................................................................... 69.103
Depth of frame .............................................................................................. 69.103
Documentation Officer ..................................................................................... 67.3
Documented vessel ........................................................................................... 67.3
Double bottom............................................................................................... 69.103
Dual Measurement System .............................................................................. 69.9
Enclosed space ................................................................................................ 69.53
Endorsement .................................................................................................... 67.3
Excluded space................................................................................................ 69.53
Exclusive Economic Zone (EEZ) ............................................................. 67.3, 68.27
Fisheries........................................................................................................... 67.3
Floor.............................................................................................................. 69.103
Forfeited vessel ................................................................................................ 67.3
Great Lakes...................................................................................................... 69.9
Gross tonnage or GT ....................................................................................... 69.53
Gross tonnage.............................................................................. 69.103, 69.157, 69.9
Hatch............................................................................................................. 69.103
Hull .................................................................................................................. 67.3
Line for fresh and tropical waters ................................................................. 69.157
Line of the second deck ................................................................................. 69.157
Line of the upper deck .................................................................................... 69.53
Line of the uppermost complete deck ........................................................... 69.157
Line of tonnage deck ..................................................................................... 69.103
Line of uppermost complete deck ................................................................. 69.103
Manufacturer’s Certificate of Origin................................................................ 67.3
Molded depth .................................................................................................. 69.53
Molded draft ................................................................................................... 69.53
National Vessel Documentation Center.................................................... 67.3, 69.9

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Subchapter G Index
Net tonnage ........................................................................ 69.9, 69.53, 69.103, 69.157
New vessel ........................................................................................................ 67.3
Not-for-profit oil spill response cooperative................................................... 68.27
Officer in Charge, Marine Inspection (OCMI) ................................................... 67.3
Overall breadth ............................................................................................. 69.203
Overall depth................................................................................................. 69.203
Overall length ........................................................................................ 69.9, 69.203
Parent corporation........................................................................................... 68.3
Passenger ........................................................................................................ 69.53
Person .............................................................................................................. 67.3
Registered breadth..................................................................... 69.53, 69.103, 69.203
Registered depth ........................................................................................... 69.203
Registered length....................................................................... 69.53, 69.103, 69.203
Registered tonnage........................................................................................ 69.103
Registration ..................................................................................................... 67.3
Second deck................................................................................................... 69.157
Secretary.......................................................................................................... 67.3
Shelter deck .................................................................................................. 69.103
Simplified Measurement System ..................................................................... 69.9
Standard Measurement System ....................................................................... 69.9
State................................................................................................................. 67.3
Step ............................................................................................................... 69.103
Subsidiary corporation..................................................................................... 68.3
Superstructure....................................................................................... 67.3, 69.103
Tonnage deck...................................................................................... 69.103, 69.157
Tonnage length ............................................................................................. 69.103
Tonnage............................................................................................................ 69.9
United States ................................................................................................... 67.3
Upper deck ......................................................................................................... 69.53
Uppermost complete deck ............................................................................. 69.103
Vessel ............................................................................................................... 67.3
Vessel designed for sailing ............................................................................ 69.203
Vessel engaged on a foreign voyage ................................................................. 69.9
Vessel of war .................................................................................................... 69.9
Weathertight .................................................................................................. 69.53
Wrecked vessel ................................................................................................. 67.3
Delegation of authority to measure vessels....................................................... 69.27
Deletion: requirement and procedure............................................................... 67.171
Deposit of Certificate of Documentation ......................................................... 67.165
Determining the measurement system or systems for a particular vessel ................................................................................................................ 69.11
Convention Measurement System .............................................................. 69.11(a)
Standard Measurement System.................................................................. 69.11(b)
Dual Measurement System......................................................................... 69.11(c)
Simplified Measurement System................................................................ 69.11(d)
Deviating from the provisions of a measurement system.................................. 69.13
Disputes............................................................................................................ 67.125
Documentation of Certain Vessels for Oil Spill Cleanup ...................... 68 Subpart B

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E
Enclosed spaces.................................................................................................. 69.59
Engine room deduction .................................................................................... 69.121
Evidence of build ............................................................................................... 67.99
Evidence of citizenship ...................................................................................... 67.43
Excess hatchway tonnage................................................................................. 69.115
Exchange of Certificate of Documentation; vessels at sea ............................... 67.149
Excluded spaces ................................................................................................. 69.61
Extent of title evidence required for:

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46 CFR Ch. I (10–1–09 Edition)
Captured, forfeited, special legislation, and wrecked Vessels ........................ 67.63
Change in ownership of a documented vessel.................................................. 67.59
Initial documentation .................................................................................... 67.57
Vessels returning to documentation............................................................... 67.61

F
Fees ................................................................................................. Subpart Y, 69.23
Applicability ................................................................................................. 67.500
Application for:
Approval of exchange of Certificate of Documentation requiring mortgagee consent .......................................................................................... 67.509
Certificate of Compliance ...........................................................................67.533
Certificate of Documentation.....................................................................67.501
Determination of rebuild ............................................................................67.525
Evidence of deletion from documentation ..................................................67.513
Exchange or replacement of a Certificate of Documentation.....................67.503
Filing and recording bills of sale and instruments in the nature of a
bill of sale .............................................................................................67.527
Filing and recording mortgages and related Instruments ..........................67.529
Filing and recording notices of claim of lien..............................................67.531
Late renewal ...............................................................................................67.517
New vessel determination...........................................................................67.521
Replacement of lost or mutilated Certificate of Documentation ...............67.507
Trade and endorsement(s)...........................................................................67.511
Waivers .......................................................................................................67.519
Wrecked vessel determination....................................................................67.523
Copies of instruments and documents........................................................... 67.539
Facsimile handling fee .................................................................................. 67.540
Fee table ....................................................................................................... 67.550
Issuance of:
Abstract of Title .........................................................................................67.535
Certificate of Ownership .............................................................................67.537
Figures.......................................................................................... 69.75, 69.123, 69.183
Filing and Recording of Instruments - Bills of Sale and Related Instruments .................................................................................................. Subpart P
Filing and Recording of Instruments - General Provisions ...................... Subpart O
Filing and Recording of Instruments - Mortgages, Preferred Mortgages,
and Related Instruments .................................................................... Subpart Q
Filing and Recording of Instruments - Notices of Claim of Lien and Supplemental Instruments ....................................................................... Subpart R
Filing limitation .............................................................................................. 67.223
Fishery endorsement ......................................................................................... 67.21
Citizenship requirement ................................................................................. 67.35
Conflicts with international agreements ...................................................... 67.350
Exemption ........................................................................................................ 67.9
Less than 100 ft ............................................................................................... 67.21
Forfeited vessels............................................................................................... 67.131
Form of document - all endorsements ............................................................... 67.15
Forms of Documentation; Endorsements; Eligibility of Vessel................ Subpart B

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G
General ..................................................................................................... Subpart A
General requirement ........................................................................................ 67.120
General requirements ............................................................................ 67.250, 67.261
General requirements; optional application for filing and recording............... 67.231
Governmental entity ......................................................................................... 67.41
Gross and net tonnage ........................................................................... 69.107, 69.161

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Gross tonnage .................................................................................................... 69.57

H
Hailing port designation .................................................................................. 67.119

I
Improper markings........................................................................................... 67.331
Individual .......................................................................................................... 67.33
Instruments eligible for filing and recording ................................................... 67.200
Issuance of an International Tonnage Certificate (1969).................................... 69.69

L
Locating the line of the second deck................................................................ 69.181

M
Managing owner designation; address; requirement to report change of
address........................................................................................................ 67.113
Marking of cargo spaces .................................................................................... 69.67
Marking Requirements for Vessel Documentation.................................... Subpart I
Markings .......................................................................................................... 69.177
Measurement of vessels ................................................................................. Part 69
Measurement requirements.............................................................................. 69.155
Measurements .................................................................................................. 69.207
Methods of establishing title ............................................................................. 67.53
Miscellaneous Applications ..................................................................... Subpart M
Mortgages
Preferred restrictions.................................................................................... 67.233

N
Name and hailing port marking requirements ................................................. 67.123
Net tonnage ....................................................................................................... 69.63

O
Official number marking requirement ............................................................. 67.121
OMB control numbers assigned under the Paperwork Reduction Act ............... 69.29
Operation under Certificate of Documentation with invalid Endorsement ........................................................................................................... 67.327
Operation without documentation ................................................................... 67.323
Original owner ................................................................................................... 67.70

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P
Partnership ........................................................................................................ 67.35
Passage of Title:
By court action ............................................................................................... 67.77
By extra-judicial repossession and sale .......................................................... 67.83
In conjunction with a corporate merger or similar Transaction .................... 67.81
Pursuant to operation of State law ................................................................ 67.91
Without court action following death of owner .............................................. 67.79
Penalties ................................................................................................. 67.142, 69.25
Place of filing and recording ............................................................................ 67.213
Privileges conferred:
Documentation of vessel................................................................................. 68.13
Operation of vessels ........................................................................................ 68.15
Privileges of a limited coastwise endorsement.................................................. 68.33

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46 CFR Ch. I (10–1–09 Edition)
Purpose ....................................................................... 69.1, 69.51, 69.101, 69.151, 69.201
Purpose and scope.............................................................................................. 68.25

Q
Qualification as:
A parent or subsidiary...................................................................................... 68.9
An 883-1 corporation ......................................................................................... 68.7

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R
Recreational endorsement ................................................................................. 67.23
Registry endorsement........................................................................................ 67.17
Remeasurement and adjustment of tonnage...................................................... 69.19
Removal of Encumbrances........................................................................ Subpart S
Renewal of endorsement................................................................................... 67.163
Replacement of Certificate of Documentation; special procedure for
wrongfully withheld document .................................................................. 67.151
Required number of copies ............................................................................... 67.209
Requirement for:
Citizen owner .................................................................................................. 67.30
Citizenship declaration ................................................................................. 67.211
Exchange of Certificate of Documentation ................................................... 67.167
Date and acknowledgment ............................................................................ 67.207
Maritime Administration approval ................................................................ 67.47
Removal from foreign registry ....................................................................... 67.55
Replacement of Certificate of Documentation.............................................. 67.169
Title evidence ................................................................................................. 67.50
Vessel identification ..................................................................................... 67.205
Requirement for determination .............................................................. 67.95, 67.105
Requirement to:
Have Certificate of Documentation on board ................................................ 67.313
Produce Certificate of Documentation ......................................................... 67.315
Renew endorsements on the Certificate of Documentation .......................... 67.317
Report change in vessel status and surrender Certificate of Documentation................................................................................................ 67.319
Report change of address of managing owner ............................................... 67.321
Requirements ................................................................................................... 67.220
Requirements for:
Amendments of or supplements to mortgages .............................................. 67.241
Amendments to notice of claim of lien ......................................................... 67.259
Assignments of mortgages ............................................................................ 67.237
Assumptions of mortgages ............................................................................ 67.239
Assignments of notices of claim of lien......................................................... 67.257
Instruments evidencing satisfaction or release ............................................ 67.265
Instruments subordinating mortgages .......................................................... 67.243
Interlender agreements ................................................................................. 67.245
Mortgages...................................................................................................... 67.235
Notices of claim of lien ................................................................................. 67.253
Removal of encumbrances by court order, affidavit, or Declaration of
Forfeiture ................................................................................................ 67.263
Requirements for citizenship under 46 U.S.C. App. 883-1 ..................................... 68.5
Restrictions ....................................................................................................... 68.17
Restriction(s) on:
Exchange; requirement and procedure for mortgagee consent...................... 67.145
Filing and recording...................................................................................... 67.203
Withdrawal of application............................................................................. 67.143
Restrictions on filing and recording ................................................................ 67.255

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Subchapter G Index
Restrictions on recording mortgages, preferred mortgages, and related
instruments ................................................................................................ 67.233
Right of appeal .................................................................................................. 69.21

S
Spaces:
Deducted from gross tonnage ........................................................................ 69.119
Exempt from inclusion in gross tonnage....................................................... 69.117
Spaces exempt from inclusion in gross tonnage............................................... 69.169
Special legislation............................................................................................ 67.132
Special Provisions .................................................................................... Subpart U
Stock or equity interest requirements .............................................................. 67.31
Submission of applications .............................................................................. 67.130
Superstructure tonnage ......................................................................... 69.113, 69.167
System of measurement; evidence ................................................................... 67.107

T
Title Requirements for Vessel Documentation ........................................ Subpart D
Tonnage and Dimension Requirements for Vessel Documentation .......... Subpart G
Tonnage assignments for vessels with:
A second deck................................................................................................ 69.175
Only one deck................................................................................................ 69.173
Transfers:
By sale or donation subsequent to documentation ......................................... 67.75
Prior to documentation .................................................................................. 67.73
Trust .................................................................................................................. 67.36

U
Unauthorized name change .............................................................................. 67.329
Under-deck tonnage ............................................................................... 69.109, 69.163
United States built ............................................................................................ 67.97

V
Validity of Certificates of Documentation; Renewal of Endorsement; Requirement for Exchange, Replacement, Deletion, Cancellation ......... Subpart L
Variance from the prescribed method of measurement ..................................... 69.73
Vessel name designation .................................................................................. 67.117
Vessels:
Required or eligible to be measured ................................................................. 69.5
Transiting the Panama and Suez Canals.......................................................... 69.7
Violation of endorsement ................................................................................. 67.325

W

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Waiver of evidence of build .............................................................................. 67.101
Waiver of production of a bill of sale eligible for filing and recording................................................................................................................ 67.89
When the tonnage mark is considered submerged............................................ 69.171
Wrecked vessels................................................................................................ 67.133

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