Download:
pdf |
pdfU.S. NUCLEAR REGULATORY COMMISSION
DRAFT REGULATORY GUIDE DG-1345
Proposed Revision 38 to Regulatory Guide RG 1.84
Issue Date: August 2018
Technical Lead: Giovanni Facco
DESIGN, FABRICATION, AND MATERIALS CODE CASE
ACCEPTABILITY, ASME SECTION III
Purpose
This regulatory guide (RG) lists the American Society of Mechanical Engineers (ASME)
Section III Code Cases that the U.S. Nuclear Regulatory Commission (NRC) has approved for use as
voluntary alternatives to the mandatory ASME Boiler and Pressure Vessel (BPV) Code provisions that are
incorporated by reference into Title 10, Part 50, of the Code of Federal Regulations (10 CFR Part 50),
“Domestic Licensing of Production and Utilization Facilities” (Ref. 1).
Applicable Rules and Regulations
•
General Design Criterion (GDC) 1, “Quality Standards and Records,” of Appendix A, “General
Design Criteria for Nuclear Power Plants,” to 10 CFR Part 50 requires, in part, that structures,
systems, and components important to safety be designed, fabricated, erected, and tested to quality
standards commensurate with the importance of the safety function to be performed. Where
generally recognized codes and standards are used, Criterion 1 requires that they be identified and
evaluated to determine their applicability, adequacy, and sufficiency and be supplemented or
modified as necessary to ensure a quality product in keeping with the required safety function.
•
Criterion 30, “Quality of Reactor Coolant Pressure Boundary,” of Appendix A to 10 CFR Part 50
requires, in part, that components that are part of the reactor coolant pressure boundary be
designed, fabricated, erected, and tested to the highest practical quality standards.
This RG is being issued in draft form to involve the public in the development of regulatory guidance in this area. It has not received final staff
review or approval and does not represent an NRC final staff position. Public comments are being solicited on this DG and its associated
regulatory analysis. Comments should be accompanied by appropriate supporting data. Comments may be submitted through the Federal
rulemaking Web site, http://www.regulations.gov, by searching for draft regulatory guide DG-1345. Alternatively, comments may be submitted
to the Rules, Announcements, and Directives Branch, Office of Administration, U.S. Nuclear Regulatory Commission, Washington, DC 205550001. Comments must be submitted by the date indicated in the Federal Register notice.
Electronic copies of this DG, previous versions of this guide, and other recently issued guides are available through the NRC’s public Web site
under the Regulatory Guides document collection of the NRC Library at http://www.nrc.gov/reading-rm/doc-collections/reg-guides/. The DG is
also available through the NRC’s Agencywide Documents Access and Management System (ADAMS) at http://www.nrc.gov/readingrm/adams.html, under Accession No. ML18114A228. The regulatory analysis may be found in ADAMS under Accession No. ML18099A041.
•
Appendix B, “Quality Assurance Criteria for Nuclear Power Plants and Fuel Processing Plants,” to
10 CFR Part 50 requires, in part, that measures be established for the control of special processing
of materials and that proper testing be performed.
•
The regulation in 10 CFR 50.55a(c), “Reactor Coolant Pressure Boundary,” requires, in part, that
components of the reactor coolant pressure boundary must be designed, fabricated, erected, and
tested in accordance with the requirements for Class 1 components of Section III, “Rules for
Construction of Nuclear Power Plant Components” (Ref. 2), of the ASME BPV Code or
equivalent quality standards.
•
10 CFR 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants” (Ref. 3), Section
10 CFR 52.79(a)(11) requires that, “[The final safety analysis report shall include the following
information:] A description of the program(s), and their implementation, necessary to ensure that
the systems and components meet the requirements of the ASME Boiler and Pressure Vessel Code
and the ASME Code for Operation and Maintenance of Nuclear Power Plants in accordance with
50.55a of this chapter.”
Related Guidance
•
Regulatory Guide 1.147, “Inservice Inspection Code Case Acceptability, ASME Section XI,
Division 1” (Ref. 4), lists the ASME Section XI Code Cases that the NRC has approved for use as
voluntary alternatives to the mandatory ASME BPV Code provisions that are incorporated into
10 CFR 50.55a.
•
Regulatory Guide 1.192, “Operation and Maintenance Code Case Acceptability, ASME OM
Code” (Ref. 5), lists the ASME Operation and Maintenance Code (OM Code) Code Cases that the
NRC has approved for use as voluntary alternatives to the mandatory ASME OM Code provisions
that are incorporated into 10 CFR 50.55a.
•
Regulatory Guide 1.193, “ASME Code Cases Not Approved for Use” (Ref. 6), lists the ASME
Section III and Section XI Code Cases that the NRC has not approved for generic use.
Purpose of this Regulatory Guide
This RG is incorporated into 10 CFR 50.55a by reference. The RG contains new Code Cases and
revisions to existing Code Cases that the staff has approved for use, as listed in Tables 1 and 2 of this
guide. The rule also states the requirements governing the use of Code Cases. Code Cases approved by the
NRC may be used voluntarily by licensees as an alternative to compliance with ASME Code provisions
that have been incorporated by reference into 10 CFR 50.55a. Because of continuing change in the status
of Code Cases, the staff plans periodic updates to 10 CFR 50.55a and this guide to accommodate new
Code Cases and any revisions of existing Code Cases.
DG-1345, Page 2
Paperwork Reduction Act
This RG provides guidance for implementing the mandatory information collections in 10 CFR
Parts 50 and 52 that are subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et. seq.). These
information collections were approved by the Office of Management and Budget (OMB), under control
numbers 3150-0011 and 3150-0151. Send comments regarding this information collection to the
Information Services Branch, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by
e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and Regulatory
Affairs, NEOB-10202 (3150-0011, 3150-0151), Office of Management and Budget, Washington, DC
20503.
Office of the Chief Information Officer (OCIO) will review this paragraph to ensure that the
correct control number is being used. The list of OCIO control numbers are located here:
http://fusion.nrc.gov/ois/team/CSD/FPIB/ICT/Shared Documents/Clearance List.xlsx
Public Protection Notification
The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of
information unless the document requesting or requiring the collection displays a currently valid OMB
control number.
DG-1345, Page 3
B. DISCUSSION
Reason of Revision
Revision 38 of RG 1.84 includes new information reviewed by the NRC of Section III Code Cases
listed in Supplement 11 to the 2010 Edition and Supplements 0 through 7 to the 2013 Edition of the ASME
BPV Code (Note: the NRC has not reviewed any Code Cases from the 2015 and 2017 Editions for
inclusion in this RG). This is an update to RG 1.84, Revision 37, which included information from
Supplement 11 to the 2007 Edition and Supplements 0 through 10 to the 2010 Edition.
Background
Provisions of the ASME BPV Code have been used since 1971 as one part of the framework
to establish the necessary design, fabrication, construction, testing, and performance requirements for
structures, systems, and components important to safety. Among other things, ASME standards
committees develop improved methods for the construction and inservice inspection (ISI) of ASME Class
1, 2, 3, MC (metal containment), and CC (concrete containment) nuclear power plant components. A broad
spectrum of stakeholders participates in the ASME process, which helps to ensure that the various interests
are considered.
The ASME publishes a new edition of the BPV Code, which includes Section III, every 2 years.
The latest edition of Section III that the NRC has approved for use are referenced in 10 CFR
50.55a(a)(1)(i). The ASME also publishes Code Cases quarterly. Code Cases provide alternatives
developed and approved by ASME. This regulatory guide identifies the Code Cases that have been
determined by the NRC to be acceptable alternatives to applicable parts of Section III. Section III Code
Cases not yet endorsed by the NRC may be used by a licensee or applicant through 10 CFR 50.55a(z).
That section permits the use of alternatives to the Code requirements referenced in 10 CFR 50.55a
provided that the proposed alternatives result in an acceptable level of quality and safety, and that their use
is authorized by the Director of the Office of Nuclear Reactor Regulation, or Office of New Reactors, as
applicable.
The ASME Code is incorporated by reference into 10 CFR 50.55a. Code Cases approved by the
NRC provide an acceptable voluntary alternative to the mandatory ASME Code provisions. Requirements
related to Code Case implementation are provided in 10 CFR 50.55a(b). When a licensee initially applies a
Code Case listed in Tables 1 or 2 of this guide, the licensee must implement the most recent version of that
Code Case incorporated by reference in 10 CFR 50.55a.
Code Cases may be annulled because the provisions have been incorporated into the Code, the
application for which it was specifically developed no longer exists, or experience has shown that the
design analysis or construction method is no longer required. After the ASME annuls a Code Case and the
NRC amends 10 CFR 50.55a and this guide, applicants or licensees may not implement that Code Case for
the first time. However, a licensee or an applicant who implemented the Code Case prior to annulment
may continue to use that Code Case until the licensee voluntarily updates its Section III Code of record. If
a Code Case is incorporated by reference into 10 CFR 50.55a and later annulled by the ASME because
experience has shown that the design analysis or construction method is no longer required, the NRC will
amend 10 CFR 50.55a and this guide to remove the approval of the annulled Code Case. Licensees or
applicants should not begin to implement such annulled Code Cases in advance of the rulemaking.
DG-1345, Page 4
Notwithstanding these requirements, the Commission may impose new or revised Code requirements,
including implementation schedules, which it determines are consistent with the Backfit Rule
(10 CFR 50.109).
A Code Case may be revised, for example, to incorporate user experience. The older or superseded
version of the Code Case cannot be applied by the licensee or applicant for the first time. If an applicant or
a licensee applied a Code Case listed in Tables 1 or 2 of this guide before it was listed as superseded, the
applicant or the licensee may continue to use the Code Case until the applicant or the licensee updates its
construction Code of Record (in the case of an applicant, updates its application). If a Code Case is
incorporated by reference into 10 CFR Part 50.55a and later a revised version is issued by the ASME
because experience has shown that the design analysis, construction method, examination method, or
testing method is inadequate; the NRC will amend 10 CFR Part 50.55a and the relevant RG to remove the
approval of the superseded Code Case. Applicants and licensees should not begin to implement such
superseded Code Cases in advance of the rulemaking.
With regard to the use of any Code Case, it is the responsibility of the user to make certain that the
provisions of the Code Case do not conflict with licensee commitments or regulatory requirements.
DG-1345, Page 5
C. REGULATORY POSITION
For Revision 38 of Regulatory Guide 1.84, the NRC reviewed the Section III Code Cases listed in
Supplement 11 to the 2010 Edition and Supplements 0 through 7 to the 2013 Edition of the ASME BPV
Code1. Appendix A to this guide lists the supplements reviewed, the edition, the supplement number, and
the date on which the supplement was approved by the ASME Board on Nuclear Codes and Standards.
Appendix B is a list of the Section III Code Cases published by the ASME in the 9 supplements. Finally,
Appendix C is a current list of all Section III Code Cases. The Code Cases addressed by this regulatory
guide are listed in five tables:
(1)
Table 1, “Acceptable Section III Code Cases,” contains the Code Cases that are acceptable to the
NRC for application in the design and construction of light-water-cooled nuclear power plants.
(2)
Table 2, “Conditionally Acceptable Section III Code Cases,” contains Code Cases that are
acceptable provided that they are used with the identified conditions (i.e., the Code Case is
generally acceptable but the NRC has determined that requirements in the Code Case, which are
alternatives to the BPV Code, must be supplemented in order to provide an acceptable level of
quality and safety).
(3)
Table 3, “Annulled Unconditionally Approved Section III Code Cases,” contains the Code Cases
that have been annulled by the ASME.
(4)
Table 4, “Annulled Conditionally Acceptable Section III Code Cases,” contains the Code Cases
that the NRC determined to be acceptable, provided that they were used with the identified
conditions, but were subsequently annulled by the ASME.
(5)
Table 5, “Section III Code Cases That Have Been Superseded by Revised Code Cases on or After
July 1, 1974,” lists Code Cases that have been superseded through revision.
1
Except for Code Cases pertaining to high-temperature gas-cooled reactors; certain requirements in Section III,
Division 2, not endorsed by the NRC; Section III, Division 2; and liquid metal.
DG-1345, Page 6
1.
Acceptable Code Cases
The Code Cases listed in Table 1 below are acceptable to the NRC for application in the design
and construction of components and their supports for water-cooled nuclear power plants. Code Cases are
published quarterly in supplements to each edition. To assist users, new and revised Code Cases are shaded
to distinguish them from those approved in previous versions of this guide. For Code Cases previously
listed in this guide, the third column of Table 1 lists the date of ASME approval. For new or revised Code
Cases, the third column of Table 1 lists the supplement and edition in which each Code Case
was published (e.g., “5/13E” means Code Case Supplement 5 to the 2013 Edition).
Table 1. Acceptable Section III Code Cases
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
N-4-13
Special Type 403 Modified Forgings or Bars, Section III, Division 1,
Class 1 and CS
2/12/08
N-60-6
Material for Core Support Structures, Section III, Division I
11/10E
N-131-1
(1759-1)
Material for Internal Pressure Retaining Items for Pressure Relief Valves,
Section III, Division 1, Class 1, 2, and 3
2/03/03
N-133-3
Use of SB-148 Alloys 952 and 954, Section III, Division 1, Class 3
2/03/03
N-154-1
Projection Resistance Welding of Valve Seats, Section III, Division 1, Classes
1, 2, and 3
2/03/03
N-171
Postweld Heat Treatment of P-No. 1 Material, Section III, Division 2
4/30/93
N-192-3
Use of Braided Flexible Connectors, Section III, Division 1, Class 2 and 3
7/23/02
N-205
Use of Ductile Iron SA-395, Section III, Division 1, Class 3
2/25/02
N-213
Welded Radial Shear Bar Assemblies, Section III, Division 2
2/25/02
N-249-15
Additional Materials for Subsection NF, Classes 1, 2, 3, and MC Supports
Fabricated Without Welding Section III, Division 1
7/13E
N-284-4
Metal Containment Shell Buckling Design Methods, Class MC, TC, and SC
Construction Section III, Divisions 1 and 3
Note: Code Case N-284-3 was unconditionally approved in Revision 37 of
RG 1.84.
11/10E
N-315
Repair of Bellows, Section III, Division 1
2/03/03
N-319-3
Alternate Procedure for Evaluation of Stresses in Butt Welding Elbows in
Class 1 Piping, Section III, Division 1
2/03/03
N-351
Use of Subsize Charpy V-Notch Specimens, Section III, Division 1
1/17/00
N-369
Resistance Welding of Bellows, Section III, Division 1
5/09/03
N-373-3
Alternative PWHT Time at Temperature for P-No. 5A or P-No. 5B Group 1
Material, Classes 1, 2, and 3
10/08/04
N-405-1
Socket Welds, Section III, Division 1
2/20/04
N-452
Specialized Subcontracted Welding Process (Electron Beam Welding),
5/09/03
DG-1345, Page 7
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
Section III, Division 1
N-453-3
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925) for
Class 2 and 3 Construction, Section III, Division 1
8/14/01
N-454-1
Nickel-Chromium-Molybdenum-Copper Stainless Steels (UNS N08925 and
N08926) Wrought Fittings for Class 2 and 3 Construction, Section III,
Division 1
6/17/03
N-455-1
Nickel-Chromium-Molybdenum-Copper Stainless Steels (UNS N08925 and
N08926) Forged Flanges and Fittings for Class 2 and 3, Section III, Division
1
6/17/03
N-469-1
Martensitic Stainless Steel for Class 1, 2, and 3 Components, Section III,
Division 1
2/03/03
N-493
Alternative Radiographic Acceptance Criteria for Vessels Used as Shipping
Casks, Section III, Division 1, Class 1
7/23/02
N-500-4
Alternative Rules for Standard Supports for Classes 1, 2, 3 and MC,
Section III, Division 1
10/14/11
N-505
Alternative Rules for the Examination of Butt Welds Used as Closure Welds for
Electrical Penetration Assemblies in Containment Structures, Section III,
Division 1
5/04/04
N-511
Design Temperature for Atmospheric and 0-15 psi Storage Tanks, Section III,
Division 1
5/04/04
N-520-6
Alternative Rules for Renewal of Active or Expired N-type Certificates for
Plants Not in Active Construction, Section III, Division 1
Note: Code Case N-520-5 was unconditionally approved in Revision 37 of
RG 1.84.
01/13E
N-525
Design Stress Intensities and Yield Strength Values for UNS N06690 With a
Minimum Specified Yield Strength of 30 ksi, Class 1 Components, Section III,
Division 1
7/23/02
N-539
UNS N08367 in Class 2 and 3 Valves, Section III, Division 1
2/20/04
N-548
Air Cooling of SA-182 Grades F304, F304L, F316, F316L Forgings Instead of
Liquid Quenching After Solution Heat Treatment, Class 1, 2, and 3, Section III,
Division 1
9/07/01
N-558
Stamping of Class 2 Vessels Fabricated to Subsection NB, Section III,
Division 1
2/25/02
N-564-2
UNS J93380, Alloy CD3MWCuN, Class 2 and 3 Construction, Section III,
Division 1
2/03/03
N-570-2
Alternative Rules for Linear Piping and Linear Standard Supports for Classes
1, 2, 3, and MC, Section III, Division 1
9/09/08
N-579
Use of Nonstandard Nuts, Class 1, 2, and 3, MC, CS Components and
Supports Construction, Section III, Division 1
2/03/03
DG-1345, Page 8
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
N-580-2
Use of Alloy 600 With Columbium Added, Section III, Division 1
1/04/08
N-594-1
Repairs to P-4 and P-5A Castings Without Postweld Heat Treatment Class 1,
2, and 3 Construction, Section III, Division 1
10/14/11
N-607
Guidance on Implementation of NS Certificate of Accreditation, Section III,
Division 1
5/04/04
N-610
Alternative Reference Stress Intensity Factor (K1R) Curve for Class
Components, Section III, Division 1
5/04/04
N-620
Rules for Class 1 Type M Pumps, Section III, Division 1
5/04/04
N-621-1
Ni-Cr-Mo Alloy (UNS N06022) Welded Construction to 800ΕF, Section III,
Division 1
10/08/04
N-625-1
Ni-Cr-Mo Alloy (UNS N06059) Welded Construction to 800ΕF, Section III,
Division 1
2/20/04
N-631
Use of Fracture Toughness Test Data to Establish Reference Temperature for
Pressure Retaining Materials Other Than Bolting for Class 1 Vessels,
Section III, Division 1
7/23/02
N-632
Use of ASTM A 572, Grades 50 and 65 for Structural Attachments to Class CC
Containment Liners, Section III, Division 2
2/03/03
N-635-1
Use of 22Cr-5Ni-3Mo-N (Alloy UNS S31803) Forgings, Plate, Bar, Welded
and Seamless Pipe, and/or Tube, Fittings, and Fusion Welded Pipe With
Addition of Filler Metal, Classes 1, 2 and 3, Section III, Division 1
2/14/03
N-636
Use of 18Cr-13Ni-3Mo (Alloy UNS S31703), 19Cr-15Ni-4Mo (Alloy UNS
S31725), and 18.5Cr-15.5Ni-4.5Mo-N (Alloy UNS S31726) Forgings,
Seamless Tubing, Plate, Welded Tubing, Welded and Seamless Pipe, Welded
Pipe With Addition of Filler Metal and Fittings, Classes 2 and 3, Section III,
Division 1
7/23/02
N-637-1
Use of 44Fe-25Ni-21Cr-Mo (Alloy UNS N08904) Plate, Bar, Fittings, Welded
Pipe, and Welded Tube, Classes 2 and 3, Section III, Division 1
09/20/10
N-642
Alternative Rules for Progressive Liquid Penetrant Examination of Groove
Welds In P-No. 8 Materials 3/16 in. (5 mm) Thick and Less Made by
Autogenous Machine or Automatic Welding, Section III, Division 1
2/03/03
N-644-1
Weld Procedure Qualification for Procedures Exempt From PWHT
in Classes 1, 2, and 3 Construction, Section III, Division 1
3/28/01
N-646
Alternative Stress Intensification Factors for Circumferential Fillet Welded or
Socket Welded Joints for Class 2 or 3 Piping, Section III, Division 1
2/20/04
N-650
Use of SA-537, Class 2 Plate Material in Non-pressure Boundary Application
Service 700ΕF to 850ΕF, Class 1 or CS, Section III, Division 1
2/20/04
N-655-2
Use of SA-738, Grade B, for Metal Containment Vessels, Class MC, Section III,
Division 1
6/6/10
DG-1345, Page 9
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
N-657
Use of the N-1A Data Report for Spent Fuel Canisters, Section III, Division 1
2/25/02
N-692
Use of Standard Welding Procedures, Section III, Divisions 1 and 2
6/17/03
N-698
Design Stress Intensities and Yield Strength for UNS N06690 With a Minimum
Specified Yield Strength of 35 ksi (240 Mpa), Class 1 Components, Section III,
Division 1
11/18/03
N-699
Use of Titanium Grade 2 (UNS R50400) Tube and Bar, and Grade 1
(UNS R50250) Plate and Sheet for Class 1 Construction, Section III, Division
1
1/05/06
N-703
Use of Strain Hardened Austenitic Material at Lower Design Stress Values for
Class 1 Valves, Section III, Division 1
5/04/04
N-708
Use of JIS G-4303, Grades SUS304, SUS304L, SUS316, and SUS316L,
Section III, Division 1
9/21/07
N-710
Use of Zirconium Alloy UNS R60702, Bars, Forgings, Plate, Seamless and
Welded Fittings, Seamless and Welding Tubing, and Seamless and Welded
Pipe, for Class 3 Construction, Section III, Division 1
5/04/04
N-725
Design Stress Values for UNS N06690 With Minimum Specified Yield Strength
of 35 ksi (240 Mpa), Classes 2 and 3 Components, Section III, Division 1
1/12/05
N-727
Dissimilar Welding Using Continuous Drive Friction Welding for Reactor
Vessel CRDM/CEDM Nozzle to Flange/Adapter Welds, Classes 1, Section III,
Division 1
2/24/06
N-736
Use UNS S32050 Welded and Seamless Pipe and Tubing, Forgings, and Plates
Conforming to SA-249/SA-249M, SA-479/SA-479M, and SA-240/SA-240M,
and Grade CK35MN Castings Conforming to ASTM A 743-03 for
Construction of Class 1, 2, and 3 Components, Section III, Division 1
1/05/06
N-738
NDE of Full Penetration Butt Welds in Class 2 Supports, Section III, Division
1
7/01/05
N-741
Use of 22Cr-5Ni-3Mo-N (Alloy UNS S32205 Austenitic/ferritic Duplex
Stainless Steel) Forging, Plate, Welded and Seamless Pipe Tubing, and
Fittings to SA-240, SA-0789, A 790-04a, SA-815, Classes 2 and 3, Section III,
Division 1
10/11/05
N-744
Use of Metric Units Boiler and Pressure Vessel Code, Section III, Divisions 1
and 3, and Section V and IX
10/11/05
N-746
Use of 46Fe-24Ni-21Cr-6Mo-Cu-N (UNS N08367) Bolting Materials for
Class 2 and 3 Components, Section III, Division 1
1/05/06
N-756
Alternative Rules for Acceptability for Class 1 Valves, NPS (DN 25) and
Smaller with Nonwelded End connections Other than flanges, Section III,
Division 1
1/21/07
N-759-2
Alternative Rules for Determining Allowable External Pressure and
Comprehensive Stress for Cylinders, Cones, Spheres, and Formed Heads,
Section III, Division 1
1/04/08
DG-1345, Page 10
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
N-760-2
Welding of Valve Plugs to Valve Stem Retainers, Classes 1, 2, and 3, Section
III, Division 1
10/10/08
N-763
ASTM A 709-06, Grade HPS 70W (HPS 485W) Plate Material Without
Postweld Heat Treatment as Containment Liner Material or Structural
Attachments to the Containment Liner, Section III, Division 2
08/28/08
N-767
Use of 21 Cr-6Ni-9Mn (Alloy UNS S21904) Grade GXM-11 (Conforming to
SA-182/SA-182M and SA-336/SA-336M), Grade TPXM-11 (Conforming to
SA-312/SA-312M) and Type XM-11 (Conforming to SA-666) Material, for
Class 1 Construction, Section III, Division 1
1/04/08
N-774
Use of 13Cr-4Ni (Alloy UNS S41500) Grade F6NM Forgings Weighing in
Excess of 10,000 lb (4 540 kg) and Otherwise conforming to the Requirements
of SA-336/SA-336M for Class 1, 2, and 3 Construction, Section III, Division 1
9/03/08
N-777
Calibration of Cv Impact Test Machines, Section III, Divisions 1, 2, and 3
10/10/08
N-782
Use of Editions, Addenda, and Cases, Section III, Division 1
1/30/09
N-785
Use of SA-479/SA-479M, UNS S41500 for Class 1 Welded Construction,
Section III, Division 1
10/12/09
N-801-1
Rules for Repair of N-Stamped Class 1, 2, and 3 Components Section III,
Division 1
Note: Code Case N-801 was unconditionally approved in Revision 37 of
RG 1.84.
11/10E
N-811
Alternative Qualification Requirements for Concrete Level III Inspection
Personnel, Section III, Division 2
08/05/11
N-815
Use of SA-358/SA-358M Grades Fabricated as Class 3 or Class 4 Welded
Pipe, Class CS Core Support Construction, Section III, Division 1
12/06/11
N-816
Use of Temper Bead Weld Repair Rules Adopted in 2010 Edition and Earlier
Editions, Section III, Division 1
12/06/11
DG-1345, Page 11
Code Case
Number
Table 1
Acceptable Section III Code Cases
Date or
Supplement/
Edition
N-817
Use of Die Forgings, SB-247, UNS A96061, Class T6, With Thickness ≤
4.000 in. Material, Class 2 Construction (1992 Edition or Later) Section III,
Division 1
12/06/11
N-819
Use of Die Forgings, SB-247, UNS A96061, Class T6, With Thickness ≤
4.000 in. Material, Class 2 Construction (1989 Edition with the 1991 Addenda
or Earlier), Section III, Division 1
12/06/11
N-822-2
Application of the ASME Certification Mark Section III, Divisions 1, 2, 3, and
5
Note: Code Case N-822 was unconditionally approved in Revision 37 of
RG 1.84.
07/13E
N-833
Minimum Nonprestressed Reinforcement in the Containment Base Mat or Slab
Required for Concrete Crack Control Section III, Division 2
01/13E
N-834
ASTM A988/A988M-11 UNS S31603, Subsection NB, Class 1 Components,
Section III, Division 1
03/13E
N-836
Heat Exchanger Tube Mechanical Plugging, Class 1, Section III, Division 1
03/13E
N-841
Exemptions to Mandatory Post Weld Heat Treatment (PWHT) of SA-738
Grade B for Class MC Applications Section III, Division 1
04/13E
N-844
Alternatives to the Requirements of NB-4250(c) Section III, Division 1
05/13E
DG-1345, Page 12
2.
Conditionally Acceptable Section III Code Cases
The Code Cases listed in Table 2 below are acceptable to the NRC for application in the design
and construction of components and their supports for water-cooled nuclear power plants within the
limitations indicated by the NRC. Unless otherwise stated, limitations indicated by the NRC are in addition
to the conditions specified in the Code Case. Code Cases are published quarterly in supplements to each
edition. To assist users, new and revised Code Cases are shaded to distinguish them from those approved
in previous versions of this guide. The shading will assist in focusing attention during the public comment
period on the changes to the guide. For Code Cases previously listed in this guide, the third column of
Table 1 lists the date of ASME approval. For new or revised Code Cases, the third column of Table 1 lists
the supplement and edition in which each Code Case was published (e.g., “5/13E” means Code Case
Supplement 5 to the 2013 Edition).
Table 2. Conditionally Acceptable Section III Code Cases
Table 2
Conditionally Acceptable Section III Code Cases
Title/Condition
Date or
Supplement/
Edition
N-62-7
Internal and External Valve Items, Section III, Division 1, Classes 1, 2, and 3
The Code requires that Class 1 and Class 2 valve manufacturers meet the
provisions of NCA-4000, “Quality Assurance.” Class 3 valve manufacturers
must also meet the provisions of NCA-4000 because all Code Class valve
items are subject to the licensee’s 10 CFR Part 50, Appendix B approved QA
program.
2/03/03
N-71-19
Additional Materials for Subsection NF, Class 1, 2, 3, and MC Supports
Fabricated by Welding Section III, Division 1
(1) The maximum measured ultimate tensile strength (UTS) of the component
support material must not exceed 170 ksi in view of the susceptibility of high
strength materials to brittleness and stress corrosion cracking.
(2) In the last sentence of paragraph 5.2 of Code Case N-71-19, reference must
be made to paragraph 5.3.2.3, “Alternative Atmosphere Exposure Time
Periods Established by Test,” of the AWS D1.1 Code for the evidence
presented to and accepted by the Authorized Inspector concerning exposure of
electrodes for a longer period of time.
(3) Paragraph 16.2.2 of Code Case N-71-19 is not acceptable as written and
must be replaced with the following: “When not exempted by 16.2.1 above,
the post weld heat treatment must be performed in accordance with NF-4622
except that ASTM A-710 Grade A Material must be at least 1000°F (540°C)
and must not exceed 1150°F (620°C) for Class 1 and 2 material and 1175°F
(640°C) for Class 3 material.”
(4) The new holding time-at-temperature for weld thickness (nominal) must be
30 minutes for welds 1/2 inch or less, 1 hour per inch of thickness for welds
over 1/2 inch to 5 inches, and for thicknesses over 5 inches, 5 hours plus 15
minutes for each additional inch over 5 inches.
(5) The fracture toughness requirements as listed in this Code Case apply only
to piping supports and not to Class 1, 2 and 3 component supports.
(6) When welding P-Number materials listed in the Code Case, the
corresponding S-Number welding requirements shall apply.
00/13E
Code Case
Number
DG-1345, Page 13
Table 2
Conditionally Acceptable Section III Code Cases
Title/Condition
Date or
Supplement/
Edition
N-155-2
Fiberglass Reinforced Thermosetting Resin Pipe, Section III, Division 1
(1) The design temperature for spray pond piping must be 100°C (212°F).
(2) The allowable design stress must be the value obtained from the
minimum hydrostatic design basis (HDB) in Table 3611-1 of Code
Case N-155-2 (Procedure A or B) or the value determined as one-sixth
of the stress obtained from a short-time burst test for the pipe being
qualified, whichever is lower. The short-time burst strength must be
determined by bursting the pipe (ASTM D-1599-74) using free-end
mounting after it has been exposed to 105 pressure cycles from
atmospheric to design pressure.
(3) The value of “K” in equation 9 of paragraph 3652 must be limited to
1.2 unless it can be demonstrated that with the use of a large value of K1
the functional capability of the system will not be impaired during upset
and emergency conditions.
(4) RTR piping must be uninsulated or uncovered and installed under
conditions that make it readily accessible for inspection.
(5) Preoperational and inservice inspections must be as follows:
(a)
During the preoperational testing period, tests must be made to
verify that the piping is free of vibration induced by weather
conditions or water flow that could fatigue the piping
prematurely;
(b)
Fiberglass-reinforced piping components must be inspected in
accordance with ASME Code, Section XI, for Code Class 3
components. In addition, all pipe supports must be inspected;
(c)
Inspection frequency for piping must be increased to once
annually if an exterior weather-resistant coating is not provided.
2/03/03
N-626
Use of Plastic Analysis for the Design of Type B Containment Components for
Nuclear Material Transportation Casks, Section III, Division 3
(1) For the acceptability of a design by analysis, Paragraph WB-3211,
“Requirements for Acceptability,” of Section III, Division 3, Subsection
WB, “Class TP (Type B) Containment,” Subparagraphs (a) through (d)
must be applied.
(2) There is a typographical error in the title of Paragraph (a)(2) of the
Code Case. Paragraph WB-3277 does not exist. Paragraph WB-3227,
“Applications of Inelastic Analysis Procedures,” of Section III, Division
3, Subsection WB, “Class TP (Type B) Containment,” is to be used.
(3) The first paragraph of WB-3324, “Design for Local Puncture
Associated with a Hypothetical Accident Condition,” of Section III,
Division 3, Subsection WB, “Class TP (Type B) Containment,” must be
applied. The second paragraph of WB-3324 may be applied. In lieu of
the third paragraph of WB-3324, the following may be applied: “In lieu
of the application of the equation for outer shell thickness (treq) the
response of the containment boundary to puncture test loadings may be
evaluated using plastic analysis according to the rules in Appendix F,
“Rules for Evaluation of Service Loadings with Level D Service
Limits.”
7/23/02
Code Case
Number
DG-1345, Page 14
Code Case
Number
N-757-1
Table 2
Conditionally Acceptable Section III Code Cases
Title/Condition
Alternative Rules for Acceptability for Class 2 and 3 Valves (DN 25) and
Smaller with Welded and Nonwelded End Connections Other than Flanges,
Section III, Division 1
The design provisions of ASME Section III, Division 1, Appendix XIII, shall
not be used for Class 3 valves.
DG-1345, Page 15
Date or
Supplement/
Edition
9/21/07
3.
Annulled Unconditionally Approved Section III Code Cases
The Code Cases listed in Table 3 were previously unconditionally approved by the NRC and have
been annulled by the ASME.
Table 3. Annulled Unconditionally Approved Section III Code Cases
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-1-7
(1332-7)
Requirements for Steel Forgings, Section III, Division 1
7/01/82
N-2
(1334-3)
Requirements for Corrosion-Resisting Steel Bars and Shapes, Section III
1/01/82
N-3-10
(1335-10)
Requirements for Bolting Materials, Section III
9/16/84
N-5-1
Nickel Chromium Age Hardenable Alloys (Alloy X750), Section III,
Division 1, Classes 1, 2, 3, MC, and CS
12/13/85
N-6
(1345-2)
Requirements for Nickel-Molybdenum-Chromium-Iron Alloys, Section III
3/01/79
N-7-1
High Yield Strength Steel, Class 1, Section II, Division 1
2/22/05
N-9-4
(1395-4)
SA-508, Class 2 Forgings with Modified Manganese Content, Section III
7/01/82
N-10
(1407-3)
Time of Examination for Classes, 1, 2, and 3, Section III Vessels
9/17/87
N-15
(1456-2)
Substitution of Ultrasonic Examination for Progressive Penetrant or
Magnetic Particle Examination of Partial Penetration and Oblique Nozzle
Attachment Welds, Section III
3/01/79
N-17
(1474-1)
Integrally Finned Tubes for Section III
1/21/91
N-20-4
SB-163, Cold Worked UNS N08800; and SB-163 UNS N06600,
UNS N06690, and UNS N08800 to Supplementary Requirements S2
of SB-163, Section III, Division 1, Class 1
9/18/01
N-22
(1498-1)
SA-508-Class 2 and 3, Minimum Tempering Temperature, Section III
7/01/82
N-24
(1516-2)
Welding of Seats or Minor Internal Permanent Attachments in Valves for
Section III Applications
1/01/80
N-30-1
(1539-1)
Metal Bellows and Metal Diaphragm Stem Sealed Valves, Section III,
Division 1, Classes 1, 2, and 3
1/01/81
DG-1345, Page 16
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-32-3
(1541-3)
Hydrostatic Testing of Embedded Class 2 and Class 3 Piping for Section III,
Division 1 Construction
7/01/79
N-33
(1542-1)
Type 403 Forgings or Bars for Bolting Material, Section III
1/21/85
N-35-1
(1552-1)
Design by Analysis of Section III, Class 1 Valves
7/01/79
N-37-3
(1557-3)
Steel Products Refined by Secondary Remelting, Section III and VIII,
Division 1 and 2
7/01/82
N-41
(1571)
Additional Material for SA-234 Carbon Steel Fittings, Section III
1/21/85
N-43
(1578)
SB-167 Nickel-Chromium-Iron (Alloy 600) Pipe or Tube, Section III
7/01/82
N-46
(1588)
Electro-Etching of Section III Code Symbols
3/19/82
N-48-2
Fabrication and Installation of Elevated Temperature Components,
Section III, Division 1
7/01/96
N-49-4
Examination of Elevated Temperature Nuclear Components, Section III,
Class 1
7/01/96
N-50-1
Testing of Elevated Temperature Components, Section III, Division 1,
Class 1
7/01/96
N-51-2
Protection Against Overpressure of Elevated Temperature Components,
Section III, Division 1, Class 1
7/01/96
N-55-1
(1609)
Inertia and Continuous Drive Friction Welding, Section III, Division 1
4/05/87
N-56
(1612)
Use of Type 308 Stainless Steel Rod and Bar for Section III, Class 1, 2, 3,
and CS Construction
7/01/78
N-61
(1620)
Stress Category for Partial Penetration Welded Penetrations, Section III,
Class Construction
1/08/82
N-65-1
(1626-1)
Normalized and Tempered 1-1/4 Cr Low Alloy Steel Forgings,
Section I and III
1/21/85
N-66-1
(1630-1)
External Pressure Charts for High Yield Strength Carbon Steels and Low
Alloy Steels (Yield Strength above 38 Ksi to 60 Ksi Inclusive) For Section
III, Class 1, 2, 3, and MC
12/05/87
N-68
(1634-2)
Use of SB-359 for Section III, Division, 1, Class 3 Construction
7/01/78
N-77
(1660)
Overpressure Protection Under Emergency Operating Conditions for
Section III, Class 1
7/01/77
DG-1345, Page 17
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-81
(1665)
Pressure-Temperature Ratings for Class 1 Valves Made from 5 Cr-1/2 Mo,
Section III
7/01/78
N-82
(1677)
Clarification of Flange Design Loads, Section III, Class 1, 2, and 3
3/01/79
N-84
(1681-1)
Organizations Accepting Overall Responsibility for Section III Construction
3/01/79
N-90
(1692)
Rules for Design of Welded Class 1 Pumps
7/01/78
N-94
(1700)
Determination of Capacities of Liquid Relief Valves, Section III, Division 1,
Class 1, 2, and 3
3/19/82
N-95-2
(1701-2)
Determination of Capacities of Vacuum Relief Valves, Section III,
Division 1, Classes 2, 3, and MC and Division 2 Concrete Containments
7/09/82
N-96-1
(1702-1)
Flanged Valves Larger than 24 inches for Section III, Division 1, Class 1, 2,
and 3 Construction
1/01/80
N-101
(1712)
Nameplates and Stamping for Section III, Division 1, Class 1, 2, 3 and MC
Construction as Referenced in NA-8300
3/01/79
N-102-2
Postweld Heat Treatment of P-1 Material, Section III, Class MC
6/30/84
N-107-1
(1722-1)
Vacuum, Carbon Deoxidized SA-508 Forgings, Section III, Division 1
1/08/82
N-108
(1724)
Deviation from the Specified Silicon Ranges in ASME Material
Specifications, Section III, Division 1, and VIII, Division 1 and 2
7/01/78
N-109
(1726)
Refinement of Low Alloy Steel Heat Affected Zone Under Overlay Cladding,
Section III, Division 1, Class 1 Components
3/01/79
N-111
(1729)
Minimum Edge Distance-Bolting for Section III, Division 1, Class 1, 2, and
3 and MC Construction of Component Supports
3/01/79
N-114
(1732)
Hardsurfaced Valves with Inlet Connections less than 2-in. Nominal Pipe
Size for Section III, Division 1, Class 1 and 2 Construction
1/01/79
N-115
(1733)
Evaluation of Safe Shut Down Earthquake Loadings for Section III,
Division 1, Class MC Containment Vessels
1/01/78
N-119-6
Pump Internal Items, Section III, Division 1, Class 1, 2, and 3
3/14/94
N-121
(1744)
Carbon Steel Pipe Flanges Larger than 24 in., Section III, Division 1,
Class 2 and 3 Construction
3/01/79
N-122-2
Procedure for Evaluation of the Design of Rectangular Cross Section
Attachments on Class 1 Piping, Section III, Division 1
8/20/09
N-123
(1746)
Leak Testing of Seal Welds, Section III, Division 1, Class 1, 2, and 3
Construction
3/01/79
DG-1345, Page 18
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-124
(1747)
Requirements for Martensitic Stainless Forgings with 13% Chromium and
4% Nickel, Section III, Division 1
7/13/87
N-125
(1748)
Low Carbon Austenitic Stainless Steel Pipe Welded With Filler Metal,
Section III, Division 1, Construction
7/01/78
N-126
(1754)
Hard Surfacing by the Spray-Fuse Method, Section III, Class 1, 2, and 3
Construction
7/01/88
N-127
(1755-1)
Alternative Rules for Examination of Welds in Piping, Section III, Class 1
and 2 Construction
2/20/92
N-139
Testing of Electroslag Wire and Flux for Class 1, 2, 3, MC, and
CS Construction, Section III, Division 1
1/01/79
N-140
(1772)
Use of SA-453 Bolts in Service Below 800ΕF Without Stress Rupture Tests,
Section III, Division 1
12/31/85
N-142-1
(1774-1)
Minimum Wall Thickness for Class 2 and 3 Valves, Section III, Division 1
1/01/80
N-147
(1781)
Use of Modified SA-487 Grade CA6NM, Section III, Division 1,
Class 1, 2, 3, MC or CS
7/01/78
N-148
(1782)
Use of Copper-Nickel Alloy 962 for Castings, Section III, Division 1,
Class 3 Construction
6/30/83
N-156
(1793)
Structural Steel Rolled Shapes, Section III, Division I, Class 2, 3, and MC
2/14/86
N-157
(1794)
Use of Seamless Al-Br, Alloy CDA 614 Pipe, Section III, Division 1, Class 3
1/07/83
N-158
(1795)
Examination of Weld Repairs in Forgings, Section III, Division 1,
Class 1, 2, 3, MC and CS
7/01/78
N-159
(1796)
Body Neck Thickness Determination for Valves with Inlet Connections 4Inch Nominal Pipe Size and Smaller, Section III, Division 1, Class 1, 2, and
3
7/01/78
N-160-1
Finned Tubing for Construction, Section III, Division 1
10/14/11
N-174
(1812)
Size of Fillet Welds for Socket Welding of Piping, Section III, Division 1
1/01/81
N-176-1
(1819-1)
Use of Type XM-19 for Construction, Section III, Division 1, Class 1, 2,
and 3
8/25/83
N-177
(1820)
Alternative Ultrasonic Examination Technique, Section III, Division 1
1/01/84
N-178
Use of ASTM B271, CDA 954, Alloy 9C for Class 3 Construction,
Section III, Division 1
1/01/80
N-179
Openings in Valves for Section III, Division 1, Class 1, 2 and 3 Construction
7/11/80
DG-1345, Page 19
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-180
Examination of Springs for Class 1 Component Standards Supports,
Section III, Division 1
7/01/78
N-181
Steel Castings Refined by the Argon Decarburization Process, Section III,
Division 1, Construction
7/11/80
N-182
Alternate Rules for Procedure Qualification Base Material Orientation,
Section III, Division 1, Class 2 and 3 Construction
7/01/81
N-183
Use of Modified SA-182 Grade F22 for Section III, Division 1, Class 1, 2
and 3 Construction
1/01/80
N-184
Roll Threading of SA-453 Bolting for Section III, Division 1, Class 1, 2, 3,
or CS Construction
7/01/79
N-188-1
Use of Welded Ni-Fe-Cr-Mo-Cu (Alloy 825) and Ni-Cr-Mo-Cb (Alloy 625)
Tubing, Section III, Division 1, Class 2 and 3
8/14/96
N-189
Primary Membrane Plus Primary Bending Stress Intensity Limits for Other
Than Solid Rectangular Sections for Section III, Division 1, Class MC
Construction
7/01/79
N-190
Use of SA-455 for Class 3 Components, Section III, Division 1
7/01/78
N-193
Use of SB-61 and SB-62 Bronze for Section III, Division 1, Class 3 Flange
and Socket Weld End Valves
11/21/80
N-196-1
Exemption from the Shakedown Requirements When Plastic Analysis Is
Performed for Section III, Division 1, Class 1 and CS Construction
7/01/92
N-204
Use of Modified SA-508, Class 3, and SA-541, Class 3 for Section III,
Division 1, Class 1, 2, and 3 Components
1/01/81
N-206
Use of ASTM B151-75 Copper-Nickel Alloy 706 Rod and Bar for
Section III, Division 1, Class 3 Construction
6/30/83
N-207-1
Use of Modified SA-479 Type XM-19 for Section III, Division 1, Class 1, 2,
3, or CS Construction
1/21/85
N-212
(1693)
Welding Procedure Qualification of Dissimilar Metal Welds When
AButtering@ with Alloy Weld Metal and Heat Treatment May Be Involved,
Section III, Division 1, and Section IX.
1/01/81
N-214-2
Use of SA-351 Grade CN7M, for Valves, Section III, Division 1
12/31/83
N-215
Integrally Finned Titanium Tubes, Section III, Division 1, Class 3
Construction
5/15/81
N-217-1
Postweld Heat Treatment of Weld Deposit Cladding on Classes 1, 2, 3, MC,
and CS Items, Section III, Division 1
2/23/87
N-220
Code Effective Date for Component Supports, Section III, Division 1
7/13/81
N-223
Requirements for Stainless Steel Precipitation Hardening, Section III,
Division 1, Class MC
11/20/81
DG-1345, Page 20
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-224-1
Use of ASTM A500 Grade B and ASTM A501 Structural Tubing for Welded
Attachments for Section III, Class 2, 3, and MC
4/05/90
N-225
Certification and Identification of Material for Component Supports,
Section III, Division 1
1/01/81
N-226
Temporary Attachment of Thermocouples, Section III, Division 1,
Class 1, 2 and 3 Component Supports
1/01/80
N-227
Examination of Repair Welds, Section III, Class 2 and 3 Tanks
7/09/82
N-228
Alternate Rules for Sequence of Completion of Code Data Report Forms
and Stamping for Section III, Class 1, 2, 3 and MC Construction
3/19/82
N-229
Alternate Rules for Fabrication Welding SB-148 Alloy CDA 954 for
Section III, Division 1, Class 3 Construction
1/21/88
N-231
Alternate Methods for Leak Detection in the Attachment Welds of Leak
Chase Channels, Section III, Division 2, Class CC
7/01/92
N-233
Alternate Rules for PWHT of P-No. 6, Group 4 Material for Section III,
Division 1, Class 3 Construction
9/17/87
N-237-2
Hydrostatic Testing of Internal Piping, Section III, Division 1, Classes 2
and 3
7/01/88
N-240
Hydrostatic Testing of Open Ended Piping, Section III, Division 1
7/01/97
N-241
Hydrostatic Testing of Piping, Section III, Division 1
7/01/97
N-243
Boundaries Within Castings Used for Core Support Structures, Section III,
Division 1, Class CS
10/14/11
N-245
Use of ASTM B61-76 and B62-76 Copper Alloy Castings for Section III,
Division 1, Class 3 Construction
7/17/85
N-246-2
SB-169 Alloy C61400, Section III, Division 1, Class 3 Construction
7/27/95
N-247
Certified Design Report Summary for Component Standard Supports,
Section III, Division 1, Class 1, 2, 3 and MC
4/30/93
N-248
Alternative Reference Radiographs, Section III, Division 1, Classes 1, 2, 3,
MC, and CS Construction
7/01/80
N-259
Ni-Cu-Al Bolting Material SB 164 Modified, Section III, Division 1, Class 3
1/01/84
N-261
Weld Procedure Qualification for Materials with Impact Requirements for
Section III, Division 1, Class 3 Construction
12/13/82
N-262
Electric Resistance Spot Welding for Structural Use in Component Supports,
Section III, Division 1
7/27/91
N-265-1
Modified SA-487 Castings, Section III, Division 1, Class 1
8/14/97
N-267
Double-Wall Radiography, Section III, Division 1, Class 1 and 2
7/01/81
DG-1345, Page 21
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-271
Simplified Method for Analyzing Flat Face Flanges with Metal to Metal
Contact Outside the Bolt Circle for Section III, Class 2, 3, and MC
Construction
2/14/86
N-272
Compiling Data Report Forms, Section III, Division 1
1/01/82
N-276
Welding of SA-358 Pipe, Section III, Division 1
2/14/86
N-277
Use of Type XM-19 Austenitic Stainless Steel for Section III, Division 1
Class MC Construction
9/17/80
N-280
Alternate Rules for Examination of Welds in Section III, Class 3 Storage
Tanks
7/01/81
N-281
Welding Operator Performance Qualification, Section III, Division 1
7/01/81
N-282
Nameplates for Valves, Section III, Division 1, Class 1, 2, and 3
Construction
7/30/89
N-294
SB-148 Alloys 952 and 954, and SB-62 Alloy 836 Fittings, Section III,
Division 1, Class 2
7/27/95
N-295
NCA-1140, Materials, Section III, Division 1
6/30/82
N-296
Welding Material, Section III, Division 1 Construction
12/01/83
N-298
Examination of Component Supports, Section III, Division 1, Class 1, 2, 3,
and MC
12/01/83
N-299-1
Use of Nickel-Chromium-Molybdenum-Columbium Alloy 625 Forgings,
Section III, Division 1, Class 2 and Class 3 Components
2/23/87
N-300
Pressure-Temperature Ratings, Hydrostatic Tests, and Minimum Wall
Thickness of Valves, Section III, Division 1, Class 1
12/01/83
N-302
Tack Welding, Section III, Division 1, Construction
11/28/83
N-304-4
Use of 20Cr-25Ni-6Mo (Alloy UNS N08366) Plate, Sheet, Strip, and Welded
Pipe, Class 2 and 3, Section III, Division 1
1/01/03
N-309-1
Identification of Materials for Component Supports, Section III, Division 1
7/01/95
N-313
Alternative Rules for Half-Coupling Branch Connections, Section III,
Division 1, Class 2
7/01/96
N-316
Alternative Rules for Fillet Weld Dimensions for Socket Welding Fittings,
Section III, Division 1, Class 1, 2, and 3
8/14/93
N-317
ASTM A276 Bar, Section III, Division
7/01/82
N-318-5
Procedure for Evaluation of the Design of Rectangular Cross Section
Attachments on Class 2 or 3 Piping, Section III, Division 1
8/20/09
N-320
Alternate PWHT for SA-487, Grade CA6NM, Section III, Division 1
12/31/83
N-321-1
Use of Modified SA-249, Grade TP 304, Section III, Division 1, Class 1
12/85/88
DG-1345, Page 22
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-324
Qualification of Authorized Nuclear Inspector Supervisor (Concrete) and
Authorized Nuclear Inspector (Concrete), Section III, Division 2,
Classes CB and CC
7/27/95
N-328
Thermit Brazing or Welding of Nonstructural Attachments, Section III,
Division 1
9/17/87
N-329
Examination of Bar Material, Section III, Division 1, Class 1
10/14/11
N-336
Examination of Welds Inaccessible During Pressure Test, Section III,
Division 1, Class MC
6/30/83
N-337-1
Use of ASTM B 525-70 Grade II, Type II, Sintered Austenitic Stainless Steel
for Classes 2, 3, and MC Component Standard Supports, Section III,
Division 1
3/14/94
N-339
Examination of Ends of Fillet Welds, Section III, Division 1,Classes 1, 2,
and MC
9/17/84
N-341
Certification of Level III NDE Examiner, Section III, Division 1 and 2
7/01/88
N-342
Use of SA-249 and SA-312 Type 317 Stainless Steel, Section III, Division 1,
Classes 1, 2, and 3
4/02/85
N-345-1
Attachment of AMS 5382 Alloy 31 Seat Rings by Friction Welding,
Section III, Division 1, Classes 1, 2, and 3
3/28/01
N-346
Explosive Welding, Section III, Division 1
6/30/86
N-347
Continuous Electric Resistance Seam Welding of P-No. 8 Materials for
Component Supports, Section III, Division 1
12/13/85
N-349
Pressure Testing Piping Systems, Section III, Division 1, Classes 2 and 3
12/13/85
N-352-1
Use of SA-638 Grade 660 Forgings and Bars Below 700ΕF Without Stress
Rupture Tests, Section III, Division 1
6/30/86
N-353
Marking of SA-354 Grade BD Bolting, Section III, Division 1
9/05/88
N-354-1
Subcontracted Service, Section III, Division 2
8/14/94
N-355
Calibration Block for Angle Beam Ultrasonic Examination of Large Fittings
in Accordance with Appendix III-3410
8/09/96
N-357
Certification of Material for Component Supports, Section III, Division 1,
Subsection NF
7/01/88
N-359
Weld Connection for Coaxial Cylinders, Section III, Division 1, Class 1
12/31/84
N-362-2
Pressure Testing of Containment Items, Section III, Division 1,Classes 1, 2,
and MC
7/01/88
N-367
SA-372 Type V, Grade 1, Class B, Section III, Division 1
2/19/89
N-368
Pressure Testing of Pump Discharge Piping, Section III, Division 1,
Classes 2 and 3
7/01/95
DG-1345, Page 23
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-370-2
Modified SA-705 Type XM-13 Forgings, Section III, Division 1
8/14/97
N-371-1
12Cr-1W-1Mo-1/4V Martensitic Stainless Steel Valve Internals, Section III,
Division 1
7/18/88
N-372
SB-163 Ni-Fe-Cr-Mo-Cu Alloy 825 (UNS N08825) Tubing, Section III,
Division 1
12/31/83
N-376
Pressure Testing of Embedded Class 2 and 3 Piping, Section III, Division 1
7/30/86
N-377
Effective Throat Thickness of Partial Penetration Groove Welds,
Section III, Division 1, Classes 1, 2, and 3
12/31/83
N-378
Examination of Piping Support Material, Section III, Division 1, Class 1
10/28/86
N-379-1
Bimetallic Tubing, Section III, Division 1, Class 1
7/18/91
N-384-1
Use of Prepackaged General Purpose Cement Grouts, Epoxy Grouts, and
Epoxy Bonding, Section III, Division 2, Class CC
7/27/91
N-387
Certification of Level III NDE Examiner, Section III, Division 2
9/18/01
N-388
Component Support Bolting, Section III, Division 1, Classes 2, 3, and MC
2/23/87
N-391-2
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Class 1 Piping, Section III, Division 1
5/04/04
N-392-3
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Classes 2 and 3 Piping, Section III, Division 1
5/04/04
N-393
Repair Welding Structural Steel Bolted Shapes and Plates for Component
Supports, Section III, Division 1
7/27/95
N-394
Restricting Lift to Achieve Reduced Relieving Capacities of Full Lift, Nozzle
Type, and Flat Seated Safety and Safety Relief Valves for Compressible
Fluid Applications, Section III, Division 1, Classes 2 and 3
3/02/01
N-395
Laser Welding, Section III, Division 1
9/18/01
N-403
Reassembly of Subsection NF Component and Piping Supports, Section III,
Division 1
7/01/95
N-410
Certified Relieving Capacities of Pressure Relief Valves Having Set
Pressure of 3 psig up to but Not including 15 psig Installed for
Overpressure Protection of Compressible Fluid Systems, Section III,
Division 1, Classes 2 and 3
3/14/00
N-412
Alternative Rules for Witnessing the Piping System Pressure Tests of
Classes 1, 2, and 3 Piping Systems, Section III, Division 1
4/15/91
N-413
Minimum Size of Fillet Welds for Subsection NF Linear Type Supports,
Section III, Division 1
2/14/88
N-414
Tack Welds for Class 1, 2, 3 and MC Components and Piping Supports
2/20/92
N-418-1
Use of Seamless Ni-Fe-Cr-Mo-Cu Low Carbon (UNS N08028
and UNS N08904) Tubing, Section III, Division 1, Classes 2 and 3
7/27/95
DG-1345, Page 24
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-420
Linear Energy Absorbing Supports for Subsection NF, Classes 1, 2, and 3
Construction
1/01/99
N-421
Brazing Using a Radiant Energy Source, Section III, Division 1
6/30/86
N-433
Non-Threaded Fasteners for Section III, Division 1, Class 1, 2, and 3
Components and Piping Supports
12/16/95
N-438-4
UNS N08367 Material, Section III, Division 1, Class 2 and 3 Construction
7/01/98
N-439-1
Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Forgings, Plate, Seamless and
Welded Pipe, and Welded Tube, Class 2 and 3 Construction, Section III,
Division 1
9/18/01
N-440-1
Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and 3
Construction, Section III, Division 1
9/18/01
N-441-2
Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3
Construction, Section III, Division 1
9/18/01
N-442
1977 Addendum to ANSI/ASME PTC 25.3-1976, Safety and Safety Relief
Valves, Class 1, 2, 3, and MC, Section III, Division 1
3/08/92
N-443-2
High Yield Strength Cr-Mo Steel, Class 1 Components, Section III,
Division 1
1/01/01
N-451
Alternative Rules for Analysis of Piping Under Seismic Loading, Class 1,
Section III, Division 1
8/14/96
N-459
SA-508 Basic Oxygen-Ladle Furnace Process for Code Construction,
Section III, Division 1
3/14/94
N-462
Alternative Rules for Analysis of Piping Products Under Seismic Loading,
Class 2 and 3 Piping Systems, Section III, Division 1
5/24/96
N-464
Laser Welding of Lap Joints, Section III, Division 1, Classes 2 and 3
Construction
5/09/03
N-466-1
Modified 9Cr-1Mo Material, Section III, Division 1, Classes 1, 2, and 3
8/14/97
N-468
Alternative Method of Earthquake Description for Class 2 and 3 Piping of
Low Seismicity Sites, Section III, Division 1
1/01/92
N-470
Class MC Material Requirements [NE-2121(c)], Section III, Division 1
3/08/92
N-474-2
Design Stress Intensities and Yield Strength Values for UNS N06690 With a
Minimum Specified Yield Strength of 35 ksi, Class 1 Components, Section
III, Division 1
1/01/00
N-475
Materials in Inventory, Section III, Division 1
12/11/92
N-476
Class 1, 2, 3, and MC Linear Component Supports - Design Criteria for
Single Angle Members, Section III, Division 1, Subsection NF
7/01/96
N-482
Direct Quenched Stainless Bar, ASTM A 479-88b, Section III, Division 1
3/05/93
N-484-1
Real Time Radioscopic Examination of Welds, Section III, Division 1
12/16/94
DG-1345, Page 25
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
N-492-1
Grade 9 Titanium Alloy Tubing, Section III, Division 1, Class 1, 2, and 3
1/01/00
N-497-1
Use of Fe-Ni-Cr-Mo-N (C-N-3MN) Cast Materials, Section III, Division 1,
Class 2 and 3 Construction
1/01/99
N-501
Alternative Rules for NCA-3800, 1990 Addenda, Section III, Division 1
12/31/93
N-502
SA-268, Grade 26-3-3 (UNS S44660), Section III, Classes 2 and 3
1/01/00
N-507
Identification of Welders, Section III, Division 2
7/27/05
N-540
Guidance on Implementation of NCA-3800 Revisions in 1994 Addenda,
Section III, Division 1
6/30/98
N-549
Stamping and Flow Certification of Rupture Disk Devices, Classes 2 and 3,
Section III, Division 1
3/19/99
N-550
Alternative Rules for Examination of Welds in Instrument Tubing, Classes 1
and 2, Section III, Division 1
5/20/01
N-551
Alternative Methods of Analysis, NC/ND-3673.1, Class 2 and 3
Applications, Section III, Division 1
8/14/97
N-559
SA-203, Grade E (Plate) and SA-350, Grade LF3 (Forging), 3.5% Ni
Nominal Composition Used in Class 1 Construction, Section III, Division 1
5/24/99
N-572
Use of SG-425 (UNS N08825) Bar and Rods for Class 1 Construction,
Section III, Division 1
5/24/99
N-596
Use of Alternative Reference Specimens, Section III, Division 1
2/20/04
N-608
Applicable Code Edition and Addenda, NCA-1140(a)(2), Section III,
Division 1
5/20/01
N-611
Use of Stress Limits as an Alternate to Pressure Limits Subsection
NC/ND-3500, Section III, Division 1
7/1/2013
N-732
Magnetic Particles Examination of forgings for Construction, Section III,
Division 1
10/14/11
N-802
Rules for Repair of Stamped Components by the N-Certificate Holder That
Originally Stamped the Component, Section III, Division 1
8/12/12
1141-7
Foreign Produced Steel
7/23/76
1434-1
Postweld Heat Treatment of SA-487 Class 8N Steel Castings, Section III
1/01/78
1461-1
Electron Beam Welding, Section I, III, and VIII, Division 1 and 2
2/16/77
1470-2
External Pressure Charts for High-Strength Carbon Steels and for
Low-Alloy Steels, Section VIII, Division 1 and 2, and Section III
11/04/74
1471-1
Vacuum Electron Beam Welding of Tube Sheet Joints, Section III
1/01/78
1475-1
Ferritic-Austenitic Stainless Steel Seamless Tubes for Section III,
Class 2 and 3 Construction
7/01/75
1477-1
Use of 1970 Addenda of ANSI B31.7, Section III
1/01/78
DG-1345, Page 26
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
1494-1
Weld Procedure Qualification Test, Section III
1/01/78
1506
Stress Intensification Factors, Section III, Class 2 and 3 Piping
1/01/78
1515
Ultrasonic Examination of Ring Forgings for Shell Sections, Section III,
Class 1 Vessels
7/01/77
1529
Materials for Instrument Line Fittings, Section III
7/01/73
1531
Electrical Penetrations, Special Alloys for Electrical Penetration Seals,
Section III
3/21/77
1532
Section III, Class 3 Components Made of 8 Percent and 9 Percent Nickel
Steel
1/01/78
1533
Pressure Temperature Ratings of SA-351 Grades CF8A, CF3, and CF3M,
Section III
7/01/75
1535-2
Hydrostatic Testing of Section III, Class 1 Valves
3/21/77
1536
Closing Seam for Electrical Penetrations for Section III, Class 2, 3, and MC
7/01/77
1553-1
Upset Heading and Roll Threading of SA-453 for Bolting in Section III
1/01/76
1555-1
Certification of Safety Relief Valves, Section III, Division 1
1/01/78
1567
Testing Lots of Carbon and Low Alloy Steel Covered Electrodes, Section III
1/01/78
1568
Testing Lots of Flux Cored and Fabricated Carbon and Low Alloy Steel
Welded Electrodes, Section III
1/01/78
1573
Vacuum Relief Valves, Section III
1/01/78
1574
Hydrostatic Test Pressure for Safety Relief Valves, Section III
12/31/74
1580-1
Buttwelded Alignment Tolerance and Acceptable Slopes for Concentric
Centerlines for Section III, Class 1, 2, and 3 Construction
1/01/78
1581
Power-Operated Pressure Relief Valves, Section III
3/01/79
1583
Use of 80-40 Carbon Steel Castings, Section III
3/21/77
1587
SA-508 Class 3 Forgings with 0.4/1.0 Ni for Section III and VIII,
Division 2 Construction
12/31/75
1590
Chemical Analysis Variations, Section III Construction
3/21/77
1601
Limits of Reinforcement for Two-Thirds Area, Section III, Class 1
7/01/74
1602-1
Use of SB-42 Alloy 122, SB-111 Alloys 122, 715 and 706 and
SB-466 Alloys 706 and 715, Section III, Class 2 and 3 Components
12/31/74
1603
Toughness Tests When Cross-Section Limits Orientation and
Location of Specimens
7/01/74
1605
Cr-Ni-Mo-V Bolting Material for Section III, Class 1 Components
3/17/80
1608-1
Use of ASME SB-265, SB-337, SB-338, and SB-381, Grades 1, 2, 3,
3/21/77
DG-1345, Page 27
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
and 7 Unalloyed Titanium and ASTM B-363 Titanium Welding Fittings,
Section III, Class 2 and 3 Components
1613
Use of SA-372 Class IV Forgings, Section III Construction
1/01/78
1614
Hydrostatic Testing of Piping Prior To or Following the Installation
of Spray Nozzles for Section III, Classes 1, 2, and 3 Piping Systems
1/01/79
1615
Use of A587-73, Section III, Class 3 Construction
1/01/78
1616
Ultrasonic Examination of Seamless Austenitic Steel Pipe, Section III,
Class 1 Construction
7/01/75
1622
PWHT of Repair Welds in Carbon Steel Castings, Section III, Class 1, 2,
and 3
1/01/76
1623
Design by Analysis for Section III, Class 1 Sleeve-Coupled and Other
Patented Piping Joints
3/01/79
1625
Repair of Section III Class 2 and 3 Tanks
12/31/74
1633
Brazing of Seats to Class 1, 2, and 3 Valve Body or Bonnets, Section III
1/01/78
1637
Effective Date for Compliance with NA-3700 of Section III
1/01/75
1645
Use of DeLong Diagram for Calculating the Delta Ferrite Content
of Welds in Section III, Class 1, 2, and CS Construction
1/01/76
1648
SA-537 Plates for Section III, Class 1, 2, 3, and MC Components
7/01/76
1649
Modified SA-453-GR 660 for Class 1, 2, 3, and CS Construction
1/01/76
1650
Use of SA-414 Grade C for Class 2 and 3 Components, Section III,
Division 1
12/31/74
1651
Interim Requirements for Certification of Component Supports, Section III,
Subsection NF
3/01/79
1657
Stress Criteria for Class 2 and 3 Atmospheric and Low Pressure
(0-15 psig) Steel Storage Tanks
7/01/77
1659
Interconnection of Two Piping Systems for Section III, Class 1, 2, and 3
Construction
7/01/77
1661
Postweld Heat Treatment P-No.1 Materials for Section III, Class 1 Vessels
1/01/78
1662
Shop Assembly of Components, Appurtenances and Piping Subassemblies
for Section III, Class 1, 2, 3, and MC Construction
1/01/78
1664
Use of Cr-Ni-Fe-Mo-Cu-Cb Stabilized Alloy Cb-3 for Section III
Class 2 and 3 Construction
3/21/77
1666
Use of SB-12, Alloy 122 for Class 2 and 3 Construction
7/01/75
1672
Nuclear Valves for Section III, Division 1, Class 1, 2, 3 Construction
3/21/77
1675
Tubesheet to Shell or Formed Head Weld Joints, Section III, Class 1 Vessels
7/01/76
DG-1345, Page 28
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
1676
Clarification of Stress Intensities in Curved Pipe or Welded Elbows,
Section III
7/01/76
1678
Butterfly Valves of Circular Cross Section Larger than 24 in. NPS for
Section III, Class 2 and 3 Construction
1/01/80
1682-1
Alternate Rules for Material Manufacturers and Suppliers, Section III,
Subarticle NA-3700
12/31/75
1683-1
Bolt Holes for Section III, Class 1, 2, 3 and MC Component Supports
7/01/76
1684
A637 Grade 718 for Bolting Class 1 and 2 Construction
1/01/76
1685
Furnace Brazing Section III, Class 1, 2, 3 and MC Construction
1/01/78
1686
Furnace Brazing, Section III, Subsection NF, Component Supports
1/01/78
1690
Stock Materials for Section III Construction, Section III, Division 1
1/01/77
1691
Ultrasonic Examination in Lieu of Radiography of Repair Welds for Vessels,
Section III, Class 1
1/01/78
1703
Brazing of Copper Alloys, Section III, Class 2
1/01/78
1706
Data Report Forms for Component Supports, Section III, Class 1, 2
and 3
12/31/75
1713
Small Material Items, Section III, Division 1, Class 1, 2, 3, CS and MC
12/31/75
1718
Design of Structural Connections for Linear Type Component Supports,
Section III, Division 1, Class 1, 2 and 3 and MC
7/01/76
1719
Single-Welded, Full-Penetration Sidewall Butt Joints in Atmospheric
Storage Tanks, Section III, Division 1, Class 2
7/01/76
1728
Steel Structural Shapes and Small Material Products for Components
Supports, Section II, Division 1 Construction
7/01/77
1740
Weld Metal Test, Section III, Class 1, 2, 3, MC and CS
7/01/76
1741-1
Interim Rules for the Required Number of Impact Tests for Rolled Shapes,
Section III, Division 1, Subsection NF, Components Supports
1/01/78
1742
Use of SB-75 Annealed Copper Alloy 122, Section III, Division 1, Class 2
Construction
7/01/76
1743
Use of SB-98 Cu-SiB Rod CDA651 Section III, Division 1, Class 2
Components
7/01/76
1760
Maximum Dimensions for Isolated Pores in WeldsBClass 1 Components,
Section III, Division 1
7/01/77
1765
Machining After Hydrostatic Testing Class 2 and 3 Construction,
Section III, Division 1
7/01/77
1766
Testing Requirements for Welding Materials, Class 1, 2, 3, MC and CS
Construction, Section III, Division 1
7/01/77
DG-1345, Page 29
Code Case
Number
Table 3
Annulled Unconditionally Approved Section III Code Cases
Annulment
Date
1767
Examination of Tubular Products Without Filler Metal-Class 1
Construction, Section III, Division 1
1/01/77
1768
Permanent Attachments to Containment VesselsBClass MC, Section III,
Division 1
1/01/78
1769-1
Qualification of NDE Level III Personnel, Section III, Division 1
10/01/77
1773
Use of Other Product Forms of Materials for Valves, Section III,
Division 1
7/01/77
1775
Data Report Forms for Core Support Structures, Class CS, Section III,
Division 1
8/13/79
1777
Use of SA-106, Grade C in Class MC Construction, Section III, Division 1
7/01/77
1787
Depth of Weld Repairs for Forgings, Section III, Division 1, Class 1, 2, 3,
MC and CS Construction
1/01/78
1798
Use of ASTM A352-75, Grades LCA and LCC, Section III, Division 1,
Class 1, 2, and 3
1/01/78
1808
F-Number Classification of Low Alloy and Carbon Steel Bare Rod
Electrodes, Sections I, II, III, IV, V, VIII, and IX.
1/01/78
1810
Testing Lots of Carbon Steel Solid, Bare Welding Electrode or Wire,
Section III, Division 1, Class 1, 2, 3, MC, and CS
3/03/80
1819
Use of Type XM-19 for Construction, Section III, Division 1, Class 1, 2, 3
1/01/78
DG-1345, Page 30
4.
Annulled Conditionally Acceptable Section III Code Cases
The Code Cases listed in Table 4 were conditionally approved by the NRC but were subsequently
annulled by the ASME.
Table 4. Annulled Conditionally Acceptable Section III Code Cases
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-11-5
(1414-5)
High Yield Strength Cr-Mo Steel for Section III, Division 1, Class 1 Vessels
The information required to be developed by Note 1 in the Code Case should be
provided in each referencing safety analysis report.
8/29/80
N-31-1
Elastomer Diaphragm Valves, Section III, Division 1, Classes 2 and 3
Each applicant who applies the Code Case should indicate in the referencing safety
analysis report that the service life of the elastomer diaphragm should not exceed the
manufacturer’s recommended service life. This recommended service life should not
exceed 1/3 of the minimum cycle life as established by the requirements of paragraph 3
of the Code Case. In addition, the service life of the elastomer diaphragm should not
exceed 5 years, and the combined service and storage life of the elastomer diaphragm
should not exceed 10 years.
7/01/93
N-32-4
Hydrostatic Testing of Embedded Class 2 and Class 3 Piping for Section III, Division 1
Construction
The acceptance of Code Case N-32-4 was based on the following clarification and
interpretation. Code Case N-32-4 does not replace paragraph NC/ND-6129,
“Provisions for Embedded or Inaccessible Welded Joints in Piping,” of the Code. The
intent of the Code Case is to (1) provide additional testing above Code requirements
and (2) permit liquid penetrant or magnetic particle testing in place of radiographic
testing for Class 3 piping with 3/8" nominal wall thickness or less.
Paragraph (1) contains an additional requirement to the Code. It was, therefore,
acceptable but unnecessary to include in the Code Case.
Paragraph (2) is a variation in the volumetric examination technique and was
acceptable as written. Paragraph (3) contains an additional requirement and is not a
relaxation of the Code. It was, therefore, acceptable but unnecessary to include in
the Code Case.
3/16/84
N-92
(1698)
Waiver of Ultrasonic Transfer Method, Section III, V, and VIII, Division 1
The material from which the basic calibration block is fabricated should be of the same
product form, alloy, and heat treatment as the material being examined. Alloys of
equivalent P-number grouping may be used for the fabrication of calibration blocks if
adjustments to signal height can be made to compensate for sound beam attenuation
difference between the calibration block and the material under examination by
following the transfer method procedure of T-535.1(d), Article 5, Section V, ASME
BPV Code, 1977 Edition.
7/13/81
DG-1345, Page 31
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-100
(1711)
Pressure Relief Valve Design Rules, Section III, Division 1, Class 1, 2 and 3
The following information should be provided in the safety analysis report:
(1) If stress limits are used in excess of those specified for the upset operating
condition, it should be demonstrated how the pressure relief function is ensured.
Refer to paragraph 3.1, Section I, of the Code Case for Class and paragraph 3.2,
Section II, of the Code Case for Class 2 and 3 pressure relief valves.
(2) If Code Case 1660 is to be used in conjunction with the Code Case, it should be
stated that the stress limits of Code Case 1660 supersede those of paragraph
3.2(b), Section I, of Code Case 1711. Functional assurance of (1) above is
required in all situations.
1/01/83
N-106-2
(1720-2)
Weld End Preparation for Section III, Division 1 Construction
The acceptance of weld end preparations other than those shown in Figures 1, 2, and 3
of the Code Case should be evaluated on a case-by-case basis.
8/14/93
N-110
(1727)
Alternate Test Fluids, Section III, Division 1
The applicant should provide justification in the referencing safety analysis report for
the fluid selected for use in the pressure test. The information provided should
demonstrate that the fluid selected will not have deleterious effects on the material of
the pressure boundary and that the fluid may be safely used at the specified temperature
and pressure of the test. When the fluid selected for use is the operating fluid,
additional information is not required.
1/01/79
N-116
(1734)
Weld Design for Use for Section III, Division 1, Class 1, 2, 3 and MC Construction of
Component Supports
If the configuration of Figure 1 of the Code Case is used for Class 1 and MC
components supports, full penetration welds should be used. The application of the
configuration shown in Figures 2 and 3 should be restricted to the welding of cans for
spring encapsulation in spring hangers. In Figure 3, the length of the leg of the fillet
weld adjacent to the plate should be equal to the thickness of the exposed edge of the
plate; also, the leg of the fillet weld adjacent to the shell should be equal to the
thickness of the exposed end of the shell.
1/01/78
N-146-1
(1780-1)
Hydrostatic Testing and Stamping of Components, Section III, Division 1, Construction
On a generic basis, the application of the Code Case is limited to pumps and valves.
Application to other components should be treated on a case-by-case basis. Each
licensing application in which the Code Case is to be used should contain information
showing that, as a minimum the closure fixture will impose loads that result in stresses
equal to or greater than those induced during the hydrostatic test of a complete pump
assembly. A closure fixture for the part being tested that is similar in size and shape to
the actual mating part is considered adequate to impose these loads. It is not intended
that piping reaction loadings be simulated in the hydrostatic testing.
1/01/82
N-175
(1818)
Welded Joints in Component Standard Supports, Section III, Division 1
That portion of the unwelded housing that is limited to 90° maximum should include a
minimum of two sectors that are uniform in length.
7/01/79
DG-1345, Page 32
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-199
Intervening Elements, Section III, Division 1, Classes 1, 2, 3 and MC Component
Construction
The applicants should provide information in the referencing safety analysis report that
demonstrates that all intervening elements have been designed in compliance with the
requirements of the respective design specification.
1/01/81
N-208-2
Fatigue Analysis for Precipitation Hardening Nickel Alloy Bolting Material to
Specification SB-637 N07718 for Class 1 Construction, Section III, Division 1
(1) In Figure A, the words “No mean stress” shall be implemented with the
understanding that it denotes “Maximum mean stress.”
(2) In Figure A, σy shall be implemented with the understanding that it denotes σmax.
10/14/11
N-238
High Temperature Furnace Brazing of Seat Rings in Valve Bodies or Bonnets for
Section III, Division 1, Class 1, 2, and 3 Valves
The furnace brazing process procedure qualification should include a verification for
nonsensitization as given in ASTM A 262-70, “Standard Practices for Detecting
Susceptibility to Intergranular Attack in Austenitic Stainless Steels” (Ref. 7), Practices
A or E, or ASTM A 708-74, “Practice for Detection of Susceptibility to Intergranular
Corrosion in Severely Sensitized Austenitic Stainless Steels” (Ref. 8), whenever
materials subject to sensitization are to be brazed. Documentation is required that a
nonsensitizing brazing procedure was employed for valves produced to this Case.
1/01/82
N-242-1
Materials Certification, Section III, Division 1, Classes 1, 2, 3, MC, and CS
Construction
Applicants should identify in their safety analysis reports the components and supports
for which the Code Case is being applied and should specify the respective paragraphs
of the Code Case.
6/30/84
DG-1345, Page 33
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-252
Low Energy Capacitive Discharge Welding Method for Temporary or Permanent
Attachments to Components and Supports, Section III, Division 1, and XI
The applicant should indicate in the safety analysis report the application, the material,
and the material thickness to which the strain gage or thermocouple will be attached by
CD welding.
7/01/82
N-260-2
Weld Repair of SA-182 Type 316 Forgings, Section III, Division 1, Classes 1, 2, 3, and
MC
Type 308L welding materials should not be used to repair grade F 316 N forgings
because of the difference in strength levels.
12/05/88
N-263
Alternate Thread Forms, Series and Fits for Component Supports, Section III, Division
1
The following information should be provided in the safety analysis report:
(1) a description of the application,
(2) a need for the use of the Code Case, and
(3) a demonstration that support design will withstand maximum conditions
of
loading with the worst combination of thread tolerance.
3/17/83
N-274
Alternative Rules for Examination of Weld Repairs for Section III, Division 1
Construction
The ultrasonic examination procedures shall be proven by actual demonstration, to the
satisfaction of the Authorized Nuclear Inspector, that the procedures are capable of
detecting unacceptable cracks according to Section XI requirements.
6/30/86
N-275
Repair of Welds, Section III, Division 1
Use of the Code Case is applicable only when the removal of an indication requires
that the full weld thickness be removed and, in addition, the backside of the weld
assembly joint is not accessible for the removal of examination material. If an
indication is removed and weld-metal layers still remain, it is not acceptable to gouge
through the wall in order to qualify for use of the Code Case. Instead, examination of
the cavity is required when such an indication has been removed.
12/31/83
N-279
Use of Torquing as a Locking Device for Section III, Division 1, Class 1, 2, 3, and MC
Component Supports
When torquing or other preloading is used as a locking device and the joint is later
unloaded or disassembled, the bolting should be replaced unless it can be demonstrated
or proved to the Authorized Nuclear Inspector that the original bolting has not been
permanently strained.
7/13/81
N-292
Depositing Weld Metal Prior to Preparing Ends for Welding, Section III, Division 1,
Class 1, 2, and 3
Class 3 piping that is longitudinally welded and that has a weld efficiency factor of 1.0
as selected from Table ND-3613.4-1, “Weld Joint Efficiency Factor,” must receive a
100 percent volumetric examination (RT or UT) of the deposited weld metal in
accordance with the requirements of ND-5000, “Examination.”
2/20/04
DG-1345, Page 34
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-310-1
Certification of Bolting Materials, Section III, Division 1, Class 1, 2, 3, MC and CS
Each applicant who applies the Code Case should indicate in the referencing port
safety analysis report:
(1) in what way the bolting does not meet NCA-3800 (or NA-3700),
(2) where the bolting will be used in the plant, and
(3) how it will be shown that the bolting material properties required by the
equipment support design specification are present in the actual bolting
material.
7/01/82
N-314
Alternate Rules for Thread Engagement, Section III, Division 1
Applicants should identify in their safety analysis report:
(1) the minimum length of thread engagement and
(2) the procedure used to establish thread engagement.
5/11/84
N-348
N-348-1
N-348-2
Use of SA-574 Socket Weld Head Cap Screws, Section III, Division 1
Applicants should justify in their safety analysis reports why use of these socket head
cap screws will not result in early failure from stress corrosion cracking.
9/7/85
2/20/89
8/14/93
N-350
Postweld Heat TreatmentBThickness of Material, Section III, Division 1
Applicants wishing to use this Code Case for other than P-1 materials should
demonstrate that the use of this Code Case will not adversely affect the required
material properties.
9/05/85
N-383-1
Weld Repair of SA-182 Austenitic Forgings, Section III, Division 1, Classes 1, 2, and 3
Applicants who apply the provisions of this Code Case to permit material
manufacturers to weld repair austenitic forgings without resolution heat treatment
should provide justification to the NRC staff (via the safety analysis report) why this is
acceptable for their applications, including their evaluation of the susceptibility for
stress corrosion cracking.
9/5/85
N-397
Alternative Rules to the Spectral Broadening Procedures of N-1226.3 for Classes 1, 2,
and 3 Piping, Section III, Division 1
The Code Case is acceptable for specific plant applications on a case-by-case basis
pending revision of Regulatory Guide 1.122, “Development of Floor Design Response
Spectra for Seismic Design of Floor-Supported Equipment or Components” (Ref. 9).
2/20/87
N-398
Reporting of Charpy-V Notch Test Results, Section III, Division 1
The Code Case is not acceptable to steam generator or reactor coolant pump supports.
Applicants wishing to use this Code Case should indicate in the safety analysis report
the component supports to which the case is applied for review on a case-by-case basis.
2/20/87
N-404
Annealed Alloy UNS N06625 Over UNS N06600 Bimetallic Tubing,
Section III, Division 1, Class 1
The outside layer of the bimetallic tubing should be limited to a minimum of 5 percent
and to a maximum of 40 percent of the wall thickness. The tolerance on the outside
layer of material should not exceed -0.000 to +0.007 inches of the specified design wall
thickness.
12/11/95
DG-1345, Page 35
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
N-411-1
Alternative Damping Values for Response Spectra Analysis of Class 1, 2, and 3 Piping,
Section III, Division 1
(1) The Code Case damping should be used completely and consistently, if used at
all. [For equipment other than piping, the damping values specified in
Regulatory Guide 1.61, “Damping Values for Seismic Design of Nuclear Power
Plants” (Ref. 10), are to be used.]
(2) The damping values specified may be used only in those analyses in which
current seismic spectra and procedures have been employed. Such use is to be
limited only to response spectral analyses [similar to that used in the study
supporting its acceptance, NUREG/CR-3526, “Impact of Changes in Damping
and Spectrum Peak Broadening on the Seismic Response of Piping Systems”
(Ref. 11)]. The acceptance of the use with other types of dynamic analyses (e.g.,
time-history analyses or independent support motion method) is pending further
justification.
(3) When used for reconciliation work or for support optimization of existing
designs, the effects of increased motion on existing clearances and on-line
mounted equipment should be checked.
(4) This Code Case is not appropriate for analyzing the dynamic response of piping
systems using supports designed to dissipate energy by yielding (i.e., the design
of which is covered by Code Case N-420). (5) This Code Case is not applicable
to piping in which stress corrosion cracking has occurred unless a case-specific
evaluation is made and is reviewed by the NRC staff.
(5) This Code Case is not applicable to piping in which stress corrosion cracking has
occurred unless a case-specific evaluation is made and is reviewed by the NRC
staff.
5/05/00
N-430
Alternative Requirements for Welding Workmanship and Visual Acceptance Criteria
for Class 1, 2, 3 and MC Linear-Type and Standard Supports, Section III, Division 1
(1) The applicant should demonstrate that the applicable supports are not subject to
cyclic loading in excess of 20,000 cycles; and
(2) The first sentence of 3.0(f)(1) should be replaced with the following: “For
material 3/8 in. and less nominal thickness, undercut depth of 1/32 in. on one
side of the member for the full length of the weld, or 1/32 in. on one side for
one-half the length of the weld, and 1/16 in. for one-fourth of the length of the
weld on the face of a rectangular tube or one-fourth the length of the weld on
the same side of the member is acceptable.”
7/01/93
N-595-4
Requirements for Spent Fuel Storage Canisters, Section III, Division 1
The canisters must be made from austenitic stainless steel Type 304 or 316.
10/14/11
N-656
Rules for the Construction of Inner Transportation Containments, Section III, Division
3
The inner transportation containment must contain only solid and dry material.
5/11/10
1361-2
Socket Welds, Section III
Code Case 1361-2 was acceptable when used in connection with Section III, paragraph
NB-3356, Fillet Welds.
3/01/79
DG-1345, Page 36
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
1412-4
Modified High Yield Strength Steel for Section III, Division 1, Class 1 Vessels
The information required to be developed by Note 1 in the Code Case should be
provided in each referencing safety analysis report. The material given in the Inquiry
section of the Code Case should be SA-508, Class 4b, instead of SA-508, Class 4.
1/01/77
1423-2
Wrought Type 304 and 316 with Nitrogen Added, Sections I, III, VIII, Division 1 and
2
Code Case 1423-2 was acceptable subject to compliance with the recommendations
contained in Regulatory Guide 1.31, “Control of Ferrite Content in Stainless Steel
Weld Metal” (Ref. 12), and Regulatory Guide 1.44, “Control of the Use of Sensitized
Stainless Steel” (Ref. 13).
7/01/77
1521-1
Use of H-Grades of SA-240, SA-479, SA-336, and SA-358, Section III
Code Case 1521-1 was acceptable subject to compliance with the recommendations
contained in Regulatory Guide 1.31, “Control of Ferrite Content in Stainless Steel
Weld Metal” (Ref. 12), and Regulatory Guide 1.44, “Control of the Use of Sensitized
Stainless Steel” (Ref. 13).
1/01/78
1528-3
High Strength Steel SA-508, Class 2 and SA-541, Class 2 Forgings, Section III, Class 1
Components
The information required to be developed by Note 1 in the Code Case should be
provided in each referencing safety analysis report.
1/01/78
1569
Design of Piping for Pressure Relief Valve Station, Section III
Code Case 1569 was acceptable subject to compliance with the recommendations
contained in Regulatory Guide 1.67, “Installation of Over-Pressure Protection Devices”
(Ref. 14).
7/01/79
1606-1
Stress Criteria Section III, Classes 2 and 3 Piping Subject to Upset, Emergency, and
Faulted Operating Conditions
Code Case 1606-1 was acceptable subject to the interpretation that the stress limit
designations of “Upset,” “Emergency,” and “Faulted” do not necessarily imply
agreement with specified plant conditions applicable to ASME Code Class 2 and 3
components for fluid systems. These designations should be established and justified in
the design specifications.
7/01/77
1607-1
Stress Criteria for Section III, Classes 2 and 3 Vessels Designed to NC/NC-3300
Excluding the NC-3200 Alternate
Code Case 1607-1 was acceptable subject to the interpretation that the stress limit
designations of “Upset,” “Emergency,” and “Faulted” do not necessarily imply
agreement with specified plant conditions applicable to ASME Code Class 2 and 3
components for fluid systems. These designations should be established and justified in
the design specifications.
7/01/77
DG-1345, Page 37
Code
Case
Number
Table 4
Annulled Conditionally Acceptable Section III Code Cases
Annulment
Date
Title/Condition
1635-1
Stress Criteria for Section III, Class 2 and 3 Valves Subjected to Upset, Emergency,
and Faulted Operating Conditions
Code Case 1635-1 was acceptable subject to the interpretation that the stress limit
designations of “Upset,” “Emergency,” and “Faulted” do not necessarily imply
agreement with specified plant conditions applicable to ASME Code Class 2 and 3
components for fluid systems. These designations should be established and justified in
the design specifications.
7/01/77
1636-1
Stress Criteria for Section III, Class 2 and 3 Pumps Subjected to Upset, Emergency,
and Faulted Operating Conditions
Code Case 1636-1 was acceptable subject to the interpretation that the stress limit
designations of “Upset,” “Emergency,” and “Faulted” do not necessarily imply
agreement with specified plant conditions applicable to ASME Code Class 2 and 3
components for fluid systems. These designations should be established and justified in
the design specifications.
7/01/77
1689-1
Alternate PWHT Time and Temperature for SA-182 Grade F-22, SA-387 Grade 22,
Class 2, and SA-335 Grade P-22 Section III, Class 1, 2, 3 and CS
The alternate postweld heat treatment should be prequalified along with the applicable
welding procedure in accordance with ASME Section IX.
1/01/78
1783-1
Qualification of Nondestructive Examination Personnel, Section III, Division 1
The first sentence of paragraph (1) should be replaced with the following: “The
certification of the Level III nondestructive examination personnel for the purpose of
this Section of the Code will be the responsibility of the employer of the Level III
individual. If the employer is not a Certificate Holder, then the verification of such
certificate is the responsibility of the Certificate Holder.”
1/01/79
DG-1345, Page 38
5.
Code Cases Superseded by Revised Code Cases
The Code Cases listed in Table 5 were approved in prior versions of this guide and have since been
superseded by revised Code Cases (on or after July 1, 1974). The date in Column 3 indicates the date on
which the ASME approved the revision to the Code Case. Note: Code Cases listed without conditions were
unconditionally approved for use by the NRC.
Table 5. Section III Code Cases That Have Been
Superseded by Revised Code Cases on or after July 1, 1974
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
N-4-11
(1337-11)
N-4-12
Special Type 403 Modified Forgings or Bars, Section III, Division 1, Class 1
and CS
1/12/05
N-5
(1344-5)
Nickel-Chromium, Age-Hardenable Alloys (Alloy X750), Section III
12/13/82
N-7
(1358-5)
High Yield Strength Steel, Section III, Division 1, Class 1 Vessels
The information required to be developed by Note 1 in the Code Case should
be provided in each referencing safety analysis report.
12/13/82
N-20
(1484-3)
N-20-1
SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at Nickel-IronChromium Alloy 800 at a Specified Minimum Yield Strength of 40.0 Ksi,
Section III, Division 1, Class 1
9/05/85
N-20-2
N-20-3
SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at Nickel-IronChromium Alloy 800 at a Specified Minimum Yield Strength of 40.0 Ksi and
Cold Worked Alloy 800 at a yield strength of 47.0 Ksi, Section III, Division 1,
Class 1
11/30/88
2/26/99
N-31
(1540-2)
Elastomer Diaphragm Valves, Section III, Class 2 and 3
Each applicant who applies the Code Case should indicate in the referencing
safety analysis report that the service life of the elastomer diaphragm should
not exceed the manufacturer’s recommended service life. This recommended
service life should not exceed 1/3 of the minimum cycle life as established by
the requirements of paragraph 3 of the Code Case. In addition, the service life
of the elastomer diaphragm should not exceed 5 years, and the combined
service and storage life of the elastomer diaphragm should not exceed 10
years.
7/18/85
N-55
(1609-1)
Inertia and Continuous Drive Friction Welding, Section I, III, IV, VIII,
Division 1 and 2, and IX
4/05/84
N-60
(1618-2)
N-60-1
Material for Core Support Structures, Section III, Division 1, Subsection NG
Welding of age-hardenable alloy SA-453 Grade 660 and SA-637
Grade 688 should be performed when the material is in the solution-treated
condition.
5/25/83
2/12/08
DG-1345, Page 39
12/07/87
9/17/84
Code Case
Number
N-60-2
N-60-3
N-60-4
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Material for Core Support Structures, Section III, Division 1, Subsection NG
Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688
should be performed when the material is in the solution-treated condition.
For SA-479 material, the maximum yield strength should not exceed 90,000
psi in view of the susceptibility of this material to environmental cracking.
Revision Date
9/05/85
5/13/91
2/15/94
N-60-5
Material for Core Support Structures, Section III, Division , Class 1
The maximum yield strength of strain-hardened austenitic stainless steel shall
not exceed 90,000 psi in view of the susceptibility of this material to
environmental cracking.
2/20/04
N-62-2
(1621-2)
N-62-3
N-62-4
N-62-5
N-62-6
Internal and External Valve Items, Section III, Division 1, Class 1, 2 and 3
Line Valves
The Code requires that Class 1 and Class 2 valve manufacturers meet the
provisions of NCA 4000, “Quality Assurance,” and, in addition, Class 3 valve
manufacturers should also meet the provisions of NCA-4000.
7/18/85
9/05/85
7/24/89
12/11/89
5/11/94
N-71-7
(1644-7)
N-71-8
(1644-8)
Additional Materials for Component Supports, Section III, Division 1,
Subsection NF, Class 1, 2, 3 and MC Component Supports
The maximum measured ultimate tensile strength (UTS) of the component
support material should not exceed 170 Ksi in view of the susceptibility of
high-strength materials to brittleness and stress corrosion cracking. Certain
applications may exist where a UTS value of up to 190 Ksi could be
considered acceptable for a material and, under this condition, the Design
Specification should specify impact testing for the material. For these cases, it
should be demonstrated by the applicant that:
(1) the impact test results for the material meet Code requirements and
(2) the material is not subject to stress corrosion cracking by virtue of the
fact that
(a) a corrosive environment is not present, and
(b)
the component that contains the material has essentially
no residual stresses or assembly stresses, and it does not
experience frequent sustained loads in service.
5/15/78
N-71-9
(1644-9)
Additional Materials for Component Supports Fabricated by Welding,
Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component
Supports
In the last sentence of paragraph 5.3, reference should be made to paragraph
4.5.2.2, “Alternate Atmosphere Exposure Time Periods Established by Test,”
of the AWS D.1.1 Code for the evidence presented to and accepted by the
Authorized Inspector concerning exposure of electrodes for longer periods of
time.
5/11/81
N-71-10
N-71-11
Additional Materials for Component Supports Fabricated by Welding,
Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component
Supports
6/17/82
2/14/83
DG-1345, Page 40
1/07/80
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
The maximum measured ultimate tensile strength (UTS) of the component
support material should not exceed 170 Ksi in view of the susceptibility of
high-strength materials to brittleness and stress corrosion cracking. Certain
applications may exist where a UTS value of up to 190 Ksi could be
considered acceptable for a material and, under this condition, the Design
Specification should specify impact testing for the material. For these cases, it
should be demonstrated by the applicant that:
(1) the impact test results for the material meet Code requirements and
(2) the material is not subject to stress corrosion cracking by virtue of the
fact that
(a) a corrosive environment is not present, and
(b) the component that contains the material has essentially
no residual stresses or assembly stresses, and it does not
experience frequent sustained loads in service.
In the last sentence of paragraph 5.3, reference should be made to paragraph
4.5.2.2, “Alternate Atmosphere Exposure Time Periods Established by Test,”
of the AWS D.1.1 Code for the evidence presented to and accepted by the
Authorized Inspector concerning exposure of electrodes for longer periods of
time.
N-71-12
Additional Materials for Component Supports Fabricated by Welding,
Section III, Division 1, Class 1, 2, 3 and MC
The maximum measured ultimate tensile strength (UTS) of the component
support material should not exceed 170 Ksi in view of the susceptibility of
high-strength materials to brittleness and stress corrosion cracking. Certain
applications may exist where a UTS value of up to 190 Ksi could be
considered acceptable for a material and, under this condition, the Design
Specification should specify impact testing for the material. For these cases, it
should be demonstrated by the applicant that:
(1) the impact test results for the material meet Code requirements and
(2) the material is not subject to stress corrosion cracking by virtue of the
fact that
(a) a corrosive environment is not present, and
(b) the component that contains the material has essentially no
residual stresses or assembly stresses, and it does not experience
frequent sustained loads in service.
In the last sentence of paragraph 5.3, reference should be made to paragraph
4.5.2.2, “Alternate Atmosphere Exposure Time Periods Established by Test,”
of the AWS D.1.1 Code for the evidence presented to and accepted by the
Authorized Inspector concerning exposure of electrodes for longer periods of
time. Paragraph 16.2.2 is not acceptable as written and should be replaced
with the following: AWhen not exempted by 16.2.1, above, the postweld heat
treatment shall be performed in accordance with NF-4622 except that for
ASTM A-710 Grade A material, it should be at least 1000°F (540°C) and
should not exceed 1150°F (620°C) for Class 1 and Class 2 material and
1175°F (640°C) for Class 3 material. The new holding time at temperature for
weld thickness (nominal) should be 30 minutes for 2 inch or less, 1 hour per
DG-1345, Page 41
2/20/84
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
inch for thickness over 2 inch to 5 inches, and 5 hours plus 15 minutes for
each additional inch over 5 inches.
N-71-13
N-71-14
N-71-15
N-71-16
N-71-17
N-71-18
Additional Materials for Subsection NF, Classes 1, 2, 3 and MC Component
Supports Fabricated by Welding, Section III, Division 1
(1) The maximum measured ultimate tensile strength (UTS) of the
component support material must not exceed 170 Ksi in view of the
susceptibility of high-strength materials to brittleness and stress
corrosion cracking.
(2) Certain applications may exist where a UTS value of up to 190 Ksi
could be considered acceptable for a material and, under this condition,
the Design Specification must specify impact testing for the material.
For these cases, it must be demonstrated by the applicant that:
the impact test results for the material meet Code requirements,
(a)
the impact test results for the material meet Code requirements,
(b)
the material is not subject to stress corrosion cracking by virtue
of the fact that:
(i)
a corrosive environment is not present, and
(ii) the component that contains the material has essentially no
residual stresses or assembly stresses, and it does not experience
frequent sustained loads in service.
(3) In the last sentence of paragraph 5.3, reference must be made to
paragraph 5.3.2.3, “Alternative Atmosphere Exposure Time Periods
Established by Tests,” of the AWS D1.1 Code for the evidence
presented to and accepted by the Authorized Inspector concerning
exposure of electrodes for longer periods of time.
(4) Paragraph 15.2.2 is not acceptable as written and must be replaced with
the following: “When not exempted by 15.2.1 above, the postweld heat
treatment must be performed in accordance with NF-4622 except that
ASTM A-710 Grade A Material must be at least 1000°F (540°C) and
must not exceed 1150°F (620°C) for Class 1 and Class 2 material and
1175°F (640°C) for Class 3 material.
(5) The new holding time at temperature for weld thickness (nominal) must
be 30 minutes for 2 inch or less, 1 hour per inch for thickness over 2
inch to 5 inches, and for thicknesses over 5 inches, 5 hours plus 15
minutes for each additional inch over 5 inches.
The fracture toughness requirements as listed in this Code Case apply only to
piping supports and not to Class 1, Class 2, and Class 3 component supports.
12/05/85
12/16/86
2/12/93
12/31/96
12/08/00
11/08/12
N-95-1
(1701-1)
Determination of Capacities of Vacuum Relief Valves, Section III, Division 1
and 2, Class MC
7/09/79
N-102-1
(1714-2)
Postweld Heat Treatment of P-1 Material, Section III, Class MC
8/28/78
N-119-2
(1739-2)
N-119-3
(1739-3
Pump Internal Items, Section III, Division 1, Class 1, 2, and 3
8/25/80
12/01/80
DG-1345, Page 42
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
N-119-4
(1739-4)
N-119-5
Revision Date
7/18/85
9/05/85
N-122
Stress Indices for Structural Attachments, Class 1, Section III, Division 1
7/24/89
N-133
(1761-1)
Use of SB-148 Alloy CA954 for Section III, Division 1, Class 2 or 3 Flanged
End Valves
1/14/77
N-133-1
N-133-2
Use of SB-148 Alloys 952 and 954, Section III, Division 1, Class 3
5/19/85
7/18/85
N-154
(1791)
Projection Resistance Welding of Valve Seats, Section III, Division 1, Class 1,
2 and 3 Valves
7/18/85
N-160
(1797)
Finned Tubing for Construction, Section III, Division 1
7/18/85
N-188
Use of Welded Ni-Fe-Cr-Mo-Cu (Alloy 825) and Ni-Cr-Mo-Cb (Alloy 625)
Tubing, Section III, Division 1, Class 3
1/01/78
N-192
N-192-1
N-192-2
Use of Flexible Hose for Section III, Division 1, Class 1, 2, and 3
Construction
The applicant should indicate system application, design and operating
pressure, and pressure-temperature rating of the flexible hose. Data to
demonstrate compliance of the flexible hose with NC/ND-3649, particularly
NC-ND-3649.4(e), are required to be furnished with the application.
8/30/79
9/16/81
7/23/02
N-196
Exemption from the Shake-down Requirements When Plastic Analysis is
Performed for Section III, Division 1, Class 1 Construction
1/08/79
N-207
Use of Modified SA-479 Type XM-19 for Section III, Division 1, Class 1, 2, or
3 Construction
3/19/79
N-208-1
Fatigue Analysis for Precipitation Hardening Nickel Alloy Bolting Material
to Specification SB-637 N07718 for Section III Division 1, Class 1
Construction
2/14/03
N-214
N-214-1
Use of SA-351, Grade CN7M, for Valves for Section III, Division 1,
Construction
9/07/82
5/25/83
N-224
Use of ASTM A500 Grade B and ASTM A501 Structural Tubing for Welded
Attachments for Section III, Class 2 and 3 Construction
5/11/81
N-237
Hydrostatic Testing of Internal Piping, Section III, Division 1
9/07/82
N-237-1
Hydrostatic Testing of Internal Piping, Section III, Division 1, Classes 2 and
3
5/25/83
N-242
Materials Certification, Section III, Division 1, Classes 1, 2, 3, MC, and CS
Construction
Applicants should identify the components and supports requiring the use of
paragraphs 1.0 through 4.0 of the Code Case in their safety analysis reports.
4/10/80
DG-1345, Page 43
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
N-246
Use of SB-169 Alloy CA614, Section III, Division 1, Class 3
9/07/82
N-246-1
SB-169, Alloy C 61400, Section III, Division 1, Class 3
5/25/83
N-249
Additional Materials for Component Supports Fabricated Without Welding,
Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component
Supports
Footnote 2 of the Code Case should apply to all materials listed in Tables 1,
2, 3, 4, and 5 of the Code Case and should be so indicated on line 5 of the
“Reply.”
5/11/81
N-249-1
Additional Materials for Component Supports Fabricated Without Welding,
Section III, Division 1, Subsection NF, Class 1, 2, 3, and MC Component
Supports
Paragraph 7 of the “Reply” should reference the requirements of NF-2600
instead of NF-2800. This is a typographical error in that NF-2800 does not
exist.
6/17/82
N-249-2
N-249-3
Additional Materials for Subsection NF Class 1, 2, 3, and MC Component
Supports Fabricated Without Welding, Section III, Division 1
2/14/83
2/20/84
N-249-4
N-249-5
Additional Material for Subsection NF, Classes 1, 2, 3, and MC Component
Supports Fabricated Without Welding, Section III, Division 1
The fracture toughness requirements as listed in Code Case N-249-4 apply
only to piping supports and not to Classes 1, 2, and 3 component supports.
The fracture toughness of Classes 1, 2, and 3 component supports should be
characterized in accordance with Section 5.3.4 of NUREG-0800, “Standard
Review Plan for the Review of Safety Analysis Reports for Nuclear Power
Plants” (Ref. 15), or on a case-by-case basis.
9/17/84
4/08/85
N-249-6
N-249-7
N-249-8
N-249-9
N-249-10
N-249-11
N-249-12
N-249-13
Additional Material for Subsection NF, Classes 1, 2, 3, and MC Component
Supports Fabricated Without Welding, Section III, Division 1
The fracture toughness requirements apply only to piping supports and not to
Classes 1, 2, and 3 component supports. The fracture toughness of Classes 1,
2, and 3 component supports should be characterized in accordance with
Section 5.3.4 of NUREG-0800, “Standard Review Plan for the Review of
Safety Analysis Reports for Nuclear Power Plants” (Ref. 15), or on a case-bycase basis. The following is to be added to paragraph (5) of the Code Case:
“For these cases, it should be demonstrated by the Owner that: (1) the impact
test results for the material meet Code requirements, and (2) the material is
not subject to stress corrosion cracking by virtue of the fact that: (a) a
corrosive environment is not present and (b) the component that contains the
material has essentially no residual stresses or assembly stresses, and it does
not experience frequent sustained loads in service.”
9/05/85
12/05/85
12/16/86
5/06/89
5/13/91
2/12/93
5/11/94
12/08/00
N-249-14
Additional Materials for Subsection NF, Class 1, 2, 3, and MC Component
Supports Fabricated Without Welding, Section III, Division 1
(1) The fracture toughness requirements apply only to piping supports and
not to Class 1, Class 2, and Class 3 component supports.
2/20/04
DG-1345, Page 44
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
(2)
Revision Date
The following is to be added to paragraph (e) of the Code Case:
(a)
“For these cases, it must be demonstrated by the Owner that: (i)
the impact test results for the material meet Code requirements, and (ii)
the material is not subject to stress corrosion cracking by virtue of the
fact that: a corrosive environment is not present; the component that
contains the material has essentially no residual stresses or assembly
stresses; and it does not experience frequent sustained loads in service.”
N-260
Weld Repair of SA-182 Type 316 Forgings, Section III, Division 1,
Classes 1, 2, 3, and MC
7/18/85
N-260-1
Weld Repair of SA-182 Type 316 Forgings, Section III, Division 1,
Classes 1, 2, 3, and MC
Type 308 L welding materials should not be used to repair grade F 316 N
forgings because of the difference in strength levels.
12/05/85
N-265
Modified SA-487 Castings, Section III, Division 1, Class 1
5/19/85
N-284-1
Metal Containment Shell Buckling Design Methods, Section III, Division 1,
Class MC
This Code Case is listed in Regulatory Guide 1.193.
10/02/00
N-284-2
N-284-3
Metal Containment Shell Buckling Design Methods, Class MC, TC, and SC
Construction, Section III, Divisions 1 and 3
1/10/07
12/17/12
N-299
Use of Nickel-Chromium-Molybdenum-Columbium Alloy 625 Forgings,
Section III, Division 1, Class 2 and Class 3 Components
7/18/85
N-304
N-304-1
N-304-2
N-304-3
Use of 20 Cr-25Ni-6Mo (Alloy UNS N08366) Welded Tubes for Section III,
Division 1, Classes 2 and 3 Construction
7/12/84
5/19/85
12/05/85
2/23/87
N-309
Identification of Materials for Component Supports, Section III, Division 1
5/11/84
N-318
N-318-1
N-318-2
N-318-3
N-318-4
Procedure for Evaluation of the Design of Rectangular Cross Section
Attachments on Class 2 or 3 Piping, Section III, Division 1
Applicants should identify in their safety analysis report:
(1) the method of lug attachment,
(2) the piping system involved, and
(3) the location in the system where the Code Case is to be applied.
2/20/84
7/12/84
9/05/85
12/11/89
4/28/94
N-319
N-319-1
N-319-2
Alternate Procedure for Evaluation of Stresses in Butt Weld Elbows in Class
1 Piping, Section III, Division 1
7/24/89
8/14/90
1/17/00
N-321
Use of Modified SA-249, Type 304, Section III, Division 1, Class 1
Construction
12/05/85
N-337
Use of ASTM B 525-70 Grade II, Type II, Sintered Austenitic Stainless Steel
for Class 2, 3, and MC Component Standard Supports, Section III, Division
1
7/18/85
DG-1345, Page 45
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
N-345
Attachment of AMS 5382 Alloy 31 Seat Rings by Friction Welding, Section
III, Division 1, Classes 1, 2, and 3
12/13/82
N-352
Use of SA-638 Grade 660 Forgings and Bars Below 700ΕF Without Stress
Rupture Tests, Section III, Division 1
7/18/85
N-362
Alternate Rules for Pressure Testing of Containment Items, Section III,
Division 1
12/13/82
N-362-1
Pressure Testing of Containment Items, Section III, Division 1, Classes 1, 2,
and MC
7/12/84
N-370
N-370-1
Modified SA-705 Grade XM-13 Forgings, Section III, Division 1
7/18/85
12/05/85
N-371
12Cr-1W-1Mo-1/4V Martensitic Stainless Steel Valve Internals, Section III,
Division 1
7/18/85
N-373-1
N-373-2
Alternative PWHT Time at Temperature for P-No. 5 Material, Section III,
Division 1, Classes 1, 2, and 3
9/07/01
11/02/04
N-379
Bimetallic Tubing Section III, Division 1, Class 1
7/18/85
N-383
Weld Repair of SA-182 Austenitic Forgings, Section III, Division 1, Classes 1,
2, and 3
Applicants who apply the provisions of the Code Case to permit material
manufacturers to weld repair austenitic forgings without resolution heat
treatment should provide justification to the NRC staff (via the safety analysis
report) why this is acceptable for their applications, including their evaluation
of the susceptibility for stress corrosion cracking.
7/18/85
N-391
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Class 1 Piping, Section III, Division 1
7/24/89
N-391-1
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Class 1 Piping, Section III, Division 1
The following typographical errors need to be corrected:
(1) In equation (3) the + sign should be changed to an = sign, and
(2) In equation (4) the first + sign should be changed to an = sign.
8/24/95
N-392
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Classes 2 and 3 Piping, Section III, Division 1
12/11/89
N-392-1
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Classes 2 and 3 Piping, Section III, Division 1
Applicants should identify in their safety analysis report:
(1) the method of lug attachment,
(2) the piping system involved, and
(3) the location in the system where the Code Case is to be applied.
12/11/92
N-392-2
Procedure for Evaluation of the Design of Hollow Circular Cross Section
Welded Attachments on Classes 2 and 3 Piping, Section III, Division 1
12/12/94
DG-1345, Page 46
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
Applicants should identify in their safety analysis report:
(1) the method of lug attachment,
(2) the piping system involved, and
(3) the location in the system where the Code Case is to be applied.
N-411
Alternative Damping Values for Seismic Analysis of Classes 1, 2, and 3
Piping Sections, Section III, Division 1
(1) The damping values specified may be used in analyzing piping
response for seismic and other dynamic loads being filtered through
building structures provided response mode frequencies are limited to
33 Hz and below. Within this range, the Code Case damping should be
used completely and consistently, if used at all. [For equipment other
than piping, the damping values specified in Regulatory Guide 1.61
(Ref. 10), should be used.]
(2) The damping values specified may be used only in those analyses in
which current seismic spectra and procedures have been employed.
Such use should be limited only to response spectral analyses [similar
to that used in the study supporting its acceptance, NUREG/CR-3526
(Ref. 11)]. The acceptance of the use with other types of dynamic
analyses (e.g., time-history analysis) is pending further justification.
(3) When used for reconciliation work or for support optimization of
existing designs, the effects of increased motion on existing clearances
and on line mounted equipment should be checked.
(4) This Code Case is not appropriate for analyzing the dynamic response
of piping systems using supports designed to dissipate energy by
yielding (i.e., the design of which is covered by Code Case N-420).
(5) This Code Case is not applicable to piping in which stress corrosion
cracking has occurred unless a case-specific evaluation is made and is
reviewed by the NRC staff.
2/20/86
N-418
Use of Seamless Ni-Fe-Cr-Mo-Cu Low Carbon (UNS N08028 and UNS
N08904) Tubing, Section III, Division 1, Classes 2 and 3
7/30/86
N-438
N-438-1
N-438-2
Fe-24.5Ni-21Cr-6.5 Mo-0.2N (Alloy UNS N08367) Seamless and Welded
Pipe, Tube, Plate, Bar, Fittings, and Forgings, Class 2 and 3 Construction,
Section III, Division 1
3/08/89
Reinstated on
5/24/96
7/27/92
N-438-3
UNS N08367 Material, Section III, Division 1, Class 2 and 3 Construction
5/24/96
N-439
Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Forgings, Plate, Seamless and
Welded Pipe, and Welded Tube, Class 2 and 3 Construction, Section III,
Division 1
7/10/00
N-440
Use of 20Cr-18Ni-6Mo (Alloy UNS J93254) Castings, Class 2 and 3
Construction, Section III, Division 1
7/10/00
N-441
N-441-1
Use of 20Cr-18Ni-6Mo (Alloy UNS S31254) Fittings, Class 2 and 3
Construction, Section III, Division 1
11/25/92
7/10/00
DG-1345, Page 47
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
N-443
N-443-1
High Yield Strength Cr-Mo Steel, Class 1 Components, Section III, Division 1
3/08/89
11/11/99
N-453
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925)
Welded Pipe for Class 2 and 3 Construction, Section III, Division 1
11/30/88
N-453-1
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925)
Seamless and Welded Pipe for Class 2 and 3 Construction, Section III,
Division 1
4/30/92
N-453-2
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925 and
N08926) Seamless and Welded Pipe for Class 2 and 3 Construction, Section
III, Division 1
12/12/95
N-454
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925)
Wrought Fittings for Class 2 and 3 Construction, Section III, Division 1
4/30/92
N-455
Nickel-Chromium-Molybdenum-Copper Stainless Steel (UNS N08925)
Forged Flanges and Fittings for Class 2 and 3 Construction, Section III,
Division 1
4/30/92
N-466
Modified 9Cr-1Mo Material, Section III, Division 1, Classes 1, 2, and 3
4/30/90
N-469
Martensitic Stainless Steel for Class 1, 2, and 3 Components, Section III,
Division 1
6/14/00
N-474
Design Stress Intensities and Yield Strength Values for Alloy 690 With a
Minimum Yield Strength of 35 ksi, Class 1 Components, Section III, Division
1
3/05/90
N-474-1
Design Stress Intensities and Yield Strength Values for UNS N06690 With a
Minimum Specified Yield Strength of 35 ksi, Class 1 Components, Section III,
Division 1
12/09/93
N-484
Real Time Radioscopic Examination of Welds, Section III, Division 1
12/16/91
N-492
Grade 9 Titanium Alloy Tubing, Section III, Division 1, Class 1, 2, and 3
5/11/94
N-497
Use of Fe-Ni-Cr-Mo-N (C-N-3MN) Cast Materials, Section III, Division 1,
Class 2 and 3 Construction
12/09/93
N-500
Alternative Rules for Standard Supports for Classes 1, 2, 3, and MC, Section
III, Division 1
12/09/93
N-500-1
N-500-2
N-500-3
8/14/01
2/20/04
8/05/11
N-510
Borated Stainless Steel for Class CS Core Support Structures and Class 1
Components, Section III, Division 1
12/12/94
N-520
Alternative Rules for Renewal of N-type Certificates for Plants Not in Active
Construction, Section III, Division 1
10/26/94
N-520-1
N-520-2
5/09/03
11/01/07
DG-1345, Page 48
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
N-520-3
N-520-4
N-520-5
Revision Date
11/10/09
3/13/12
5/18/2012
N-564
N-564-1
UNS J93380, Alloy CD3MWCuN, Class 2 and 3 Construction, Section III,
Division 1
7/30/98
12/31/96
N-570
Alternative Rules for Linear Piping and Linear Standard Supports for Classes
1, 2, 3, and MC, Section, III, Division 1
3/28/06
1/05/06
N-570-1
Alternative Rules for Linear Piping and Linear Standard Supports for Classes
1, 2, 3, and MC, Section III, Division 1
The provisions of ANSI/AISC N690-1994 s2, “Supplement No. 2 to the
Specification for the Design, Fabrication, and Erection of Steel of SafetyRelated Structures for Nuclear Facilities,” must be met.
1/05/06
N-580
N-580-1
Use of Alloy 600 With Columbium Added, Section III, Division 1
5/26/97
5/20/98
N-594
Repairs to P-4 and P-5A Castings Without Postweld Heat Treatment Class 1,
2, and 3 Construction, Section III, Division 1
3/02/98
N-595-3
Requirements for Spent Fuel Storage Canisters, Section III, Division 1
The canisters must be made from austenitic stainless steel Type 304 or 316.
4/08/02
N-621
Ni-Cr-Mo Alloy (UNS N06022) Welded Construction to 800°F, Section III,
Division 1
11/02/04
N-625
Ni-Cr-Mo Alloy (UNS N06059) Welded Construction to 800°F, Section III,
Division 1
3/28/01
N-635
Use of 22Cr-5Ni-3Mo-N (Alloy UNS S31803) Forgings, Plate, Bar, Welded
and Seamless Pipe, and/or Tube, Fittings, and Fusion Welded Pipe With
Addition of Filler Metal, Classes 2 and 3, Section III, Division 1
2/14/03
N-637
Use of 44Fe-25Ni-21Cr-Mo (Alloy UNS N08904) Plate, Bar, Fittings, Welded
Pipe, and Welded Tube, Classes 2 and 3, Section III, Division 1
09/20/10
N-644
Weld Procedure Qualification for Procedures Exempt from PWHT in
Class 1, 2, and 3 Construction, Section III, Division 1
N-655
Use of SA-738, Grade B, for Metal Containment Vessels, Class MC, Section
III, Division 1
For metal containment vessels up to 1.75 inch thick:
(1) Supplementary Requirement S17, “Vacuum Carbon-Deoxidized Steel,” of
Material Specification SA-738 must be applied to the material, and
(2) Supplementary Requirement S20, “Maximum Carbon Equivalent for
Weldability,” of Material Specification SA-738 must be applied to the
material.
DG-1345, Page 49
Reinstated
2/14/03
2/25/02
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
N-757
Alternative Rules for Acceptability for Class 2 and 3 Valves (DN 25) and
Smaller with Welded and Nonwelded End Connections Other than Flanges,
Section III, Division 1
1/21/07
N-759
N-759-1
Alternative Rules for Determining Allowable External Pressure and
Comprehensive Stresses for Cylinders, Cones, Spheres, and Formed Heads,
Class 1, 2, and 3, Section III, Division 1
10/04/06
10/19/07
N-760
N-760-1
Welding of Valve Plugs to Valve Stem Retainers, Classes 1, 2, and 3, Section
III, Division 1
3/27/07
2/12/08
N-801
Rules for Repair of N-Stamped Class 1, 2, and 3 Components Section III,
Division 1
8/12/12
N-822
N-822-1
Applicationof the ASME Certification Mark Section III, Divisions 1, 2, 3, and
5
12/6/11
12/17/12
1332-6
Requirements for Steel Forgings, Section III, Division 1
3/01/79
1335-9
Requirements for Bolting Materials
8/28/78
1337-9
1337-10
Special Type 403 Modified Forgings or Bars, Section III
4/28/75
5/15/78
1395-3
SA-508, Class 2 Forgings with Modified Manganese Content, Section III or
Section VIII, Division 2
1/08/79
1407-2
Time of Examination for Class 1, 2, and 3, Section III Vessels
7/01/74
1414-3
1414-4
High Yield Strength Cr-Mo Steel for Section III, Division 1, Class 1 Vessels
The information required to be developed by Note 1 in the Code Case should
be provided in each referencing safety analysis report.
3/1/76
8/9/77
1484-1
SB-163 Nickel-Chromium-Iron Tubing (Alloy 600) at a Specified Minimum
Yield Strength of 40.0 ksi, Section III, Class 1
11/04/74
1484-2
SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at a Specified
Minimum Yield Strength of 40.0 ksi, Section III, Class 1
8/13/76
1492
Post Weld Heat Treatment, Section I, III and VIII, Division 1 and 2
3/03/75
1508
Allowable Stresses, Design Intensity and/or Yield Strength Values, Section I,
III, and VIII, Divisions 1 and 2
6/30/75
1516-1
Welding of Seats in Valves for Section III Applications
8/11/75
1540-1
Elastomer Diaphragm Valves, Section III, Classes 2 and 3
1/14/77
1541-1
Hydrostatic Testing of Embedded Class 2 and Class 3 Piping for Section III
Construction
9/30/76
1541-2
Hydrostatic Testing of Embedded Class 2 and Class 3 Piping for Section III,
Division 1 Construction
5/15/78
1552
Design by Analysis of Section III, Class 1 Valves
8/29/77
DG-1345, Page 50
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
1553
Upset Heading and Roll Threading of SA-453 for Bolting in Section III
3/03/75
1555
Certification of Safety Relief Valves on Liquids
1/14/77
1557-2
Steel Products Refined by Secondary Remelting
1/08/79
1606
Stress Criteria for Section III, Class 2 and 3 Piping Subjected to Upset,
Emergency, and Faulted Operating Conditions
Code Case 1606 was acceptable subject to the interpretation that the stress
limit designations of “Upset,” “Emergency,” and “Faulted” do not necessarily
imply agreement with specified plant conditions applicable to ASME Code
Class 2 and 3 components for fluid systems. These designations should be
established and justified in the design specifications.
12/16/74
1607
Stress Criteria for Section III, Classes 2 and 3 Vessels Subjected to Upset,
Emergency, and Faulted Operating Conditions
Code Case 1607 was acceptable subject to the interpretation that the stress
limit designations of “Upset,” “Emergency,” and “Faulted” do not necessarily
imply agreement with specified plant conditions applicable to ASME Code
Class 2 and 3 components for fluid systems. These designations should be
established and justified in the design specifications.
11/04/74
1618
Material for Core Support Structures, Section III, Subsection NG
(a) Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade
688 should be performed when the material is in the solution-treated
condition.
(b) Use of alloy ASTM A-564 Grade 631 is not acceptable on a generic
basis.
3/03/75
1618-1
Material for Core Support Structures, Section III, Subsection NG
Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688
should be performed when the material is in the solution-treated condition.
3/01/76
1626
Normalized and Tempered 1-1/4 Cr Low Alloy Steel Forgings,
Section I, Section III, and Section VIII, Division 1 and 2
1/08/79
1634
1634-1
Use of SB-359 for Section III, Class 3 Construction
8/12/74
8/13/76
1644
1644-1
1644-2
1644-3
Additional Materials for Component Supports, Section III, Subsection NF,
Class 1, 2, 3, and MC Construction
The maximum measured ultimate tensile strength of the component support
material should not exceed 170 ksi.
4/28/75
6/30/75
11/03/75
3/01/76
1644-4
1644-5
1644-6
Additional Materials for Component Supports and Alternate Design
Requirements for Bolted Joints, Section III, Division 1, Subsection NF, Class
1, 2, 3, and MC Construction
The maximum measured ultimate tensile strength (UTS) of the component
support material should not exceed 170 ksi in view of the susceptibility of
high-strength materials to brittleness and stress corrosion cracking. Certain
applications may exist where a UTS value of up to 190 ksi could be
8/13/76
3/03/77
11/21/77
DG-1345, Page 51
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
considered acceptable for a material and, under this condition, the Design
Specification should specify impact testing for the material. For these cases, it
should be demonstrated by the applicant that
(1) the impact test results for the material meet code requirements, and
(2) the material is not subject to stress corrosion cracking by virtue of the
fact that
(a) a corrosive environment is not present and
(b) the component that contains the material has essentially no
residual stresses or assembly stresses, and it does not experience
frequent sustained loads in service.
1682
Alternate Rules for Material Manufacturers and Suppliers, Section III,
Subarticle NA-3700
8/11/75
1683
Bolt Holes for Section III, Division 1, Class 1, 2, 3 and MC Component
Supports
3/01/76
1689
Alternate PWHT Time and Temperature for SA-182 Grade F22, Section III,
Class 1, 2, 3 and CS
The alternate postweld heat treatment should be prequalified along with the
applicable welding procedure in accordance with ASME Section IX.
9/10/76
1695
Brazing, Section III, Class 3
11/03/75
1701
Determination of Capacities of Vacuum Relief Valves, Section III, Class MC
3/20/78
1702
Flanged Valves Larger than 24 inches for Section III, Class 1, 2 and 3
Construction
7/11/77
1714
Postweld Heat Treatment of P-1 Material, Section III, Class MC
7/11/77
1720
Weld End Preparation for Section III, Division Construction
Weld end preparations other than those shown in Figures 1, 2, and 3 of the
Code Case are not acceptable on a generic basis. Such alternative end
preparations should be treated on a case-by-case basis.
3/01/76
1720-1
Weld End Preparation for Section III, Division Construction
The acceptance of weld end preparations other than those shown in Figures 1,
2, and 3 of the Code Case should be evaluated on a case-by-case basis.
11/20/78
1722
Vacuum, Carbon Deoxidized SA-508 Forgings, Section III, Division 1, and
VIII, Division 1 and 2
1/08/79
1741
Interim Rules for the Required Number of Impact Tests for Rolled Shapes,
Section III, Division 1, Subsection NF, Component Supports
1/14/77
1755
Alternate Rules for Examination of Welds in Piping, Class 1 and 2
Construction, Section III, Division 1
1/14/77
1759
Material for Internal Pressure Retaining Items for Pressure Relief Valves,
Section III, Division 1, Class 1, 2, and 3
Applicants using this Case should also use Code Case 1711 for the design of
5/15/78
DG-1345, Page 52
Code Case
Number
Table 5
Code Cases That Have Been Superseded by Revised
Code Cases on or After July 1, 1974
Revision Date
pressure relief valves.
1761
Use of SG-148 Alloy CA954 for Section III, Division 1, Class 2 or 3 Flanged
End Valves
1/14/77
1769
Qualification of NDE Level III Personnel, Section III, Division 1
2/16/77
1774
Minimum Wall Thickness for Class 2 and 3 Valves, Section III, Division 1
7/11/77
1780
Hydrostatic Testing and Stamping of Pumps for Class 1 Construction,
Section III, Division 1
Each licensing application in which the Code Case is to be used should
present information that satisfactorily demonstrates that the subassembly tests
adequately simulate the pressure loadings. Also, the closure fixture for the
test subassembly should adequately simulate the rigidity of adjacent
subassemblies and also simulate the interface loadings from adjacent
subassemblies that would result from a hydrostatic pressure test of a complete
pump assembly. As a minimum, the closure fixture should impose loads that
result in stresses equal to or greater than those induced during the hydrostatic
test of a complete pump assembly. It is not intended that piping reactor
loadings be simulated in the hydrostatic testing
3/10/78
1783
Qualification of Nondestructive Personnel, Section III, Division 1
The first sentence of paragraph (1) should be replaced with the following:
“The certification of the Level III nondestructive examination personnel for
the purposes of this Section of the Code shall be the responsibility of the
employer of the Level III individual. If the employer is not a Certificate
Holder, then the verification of such certificate is the responsibility of the
Certificate Holder.”
1/14/77
DG-1345, Page 53
D. IMPLEMENTATION
The purpose of this section is to provide information to applicants and licensees regarding the NRC
staff’s plans for using this regulatory guide. The requirements addressing implementation of Section III
Code Cases are contained in 10 CFR 50.55a(b)(4). No backfit is intended or approved in connection with
the issuance of this guide.
DG-1345, Page 54
REFERENCES1
1.
Code of Federal Regulations, Title 10, Energy, Part 50, “Domestic Licensing of Production and
Utilization Facilities” (10 CFR Part 50), U.S. Nuclear Regulatory Commission, Washington, DC.
2.
ASME Boiler and Pressure Vessel Code, Section III, “Rules for Construction of Nuclear Power Plant
Components,” Division I, American Society of Mechanical Engineers, New York, NY.2
3.
CFR, Title 10, Energy, Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants,”
U.S. Nuclear Regulatory Commission, Washington, DC.
4.
Regulatory Guide 1.147, “Inservice Inspection Code Case Acceptability, ASME Section XI,
Division 1,” U.S. Nuclear Regulatory Commission, Washington, DC.
5.
Regulatory Guide 1.192, “Operation and Maintenance Code Case Acceptability, ASME OM Code,”
U.S. Nuclear Regulatory Commission, Washington, DC.
6.
Regulatory Guide 1.193, “ASME Code Cases Not Approved for Use,” U.S. Nuclear Regulatory
Commission, Washington, DC.
7.
ASTM A 262-70, “Standard Practices for Detecting Susceptibility to Intergranular Attack in
Austenitic Stainless Steels,” American Society for Testing and Materials, West Conshohocken, PA.3
8.
ASTM A 708-74, “Practice for Detection of Susceptibility to Intergranular Corrosion in Severely
Sensitized Austenitic Stainless Steels,” American Society for Testing and Materials,
West Conshohocken, PA.
9.
Regulatory Guide 1.122, “Development of Floor Design Response Spectra for Seismic Design of
Floor-Supported Equipment or Components,” U.S. Nuclear Regulatory Commission, Washington,
DC.
1
Publicly available NRC published documents are available electronically through the NRC Library on the NRC’s public
Web site at: http://www.nrc.gov/reading-rm/doc-collections/. The documents can also be viewed on-line or printed for a
fee in the NRC’s Public Document Room (PDR) at 11555 Rockville Pike, Rockville, MD; the mailing address is
USNRC PDR, Washington, DC 20555; telephone 301-415-4737 or (800) 397-4209; fax (301) 415-3548; and e-mail
pdr.resource@nrc.gov.
2
Copies may be purchased from the American Society of Mechanical Engineers, Three Park Avenue, New York, NY
10016-5990; phone (212) 591-8500; fax (212) 591-8501; www.asme.org.
3
Copies of ASTM standards may be purchased from the American Society for Testing and Materials, 100 Barr Harbor
Drive, P.O. Box C700, West Conshohocken, Pennsylvania 19428-2959; phone (610) 832-9585. Purchase information
is available through the ASTM Web site at http://www.astm.org.
.
DG-1345, Page 55
U.S. NUCLEAR REGULATORY COMMISSION
DRAFT REGULATORY GUIDE DG-1345
Proposed Revision 38 to Regulatory Guide RG 1.84
Issue Date: August 2018
Technical Lead: Giovanni Facco
10.
Regulatory Guide 1.61, “Damping Values for Seismic Design of Nuclear Power Plants,” U.S.
Nuclear Regulatory Commission, Washington, DC.
11.
NUREG/CR-3526, “Impact of Changes in Damping and Spectrum Peak Broadening on the Seismic
Response of Piping Systems,” U.S. Nuclear Regulatory Commission, Washington, DC.
12.
Regulatory Guide 1.31, “Control of Ferrite Content in Stainless Steel Weld Metal,” U.S. Nuclear
Regulatory Commission, Washington, DC.
13.
Regulatory Guide 1.44, “Control of the Use of Sensitized Stainless Steel,” U.S. Nuclear Regulatory
Commission, Washington, DC.
14.
Regulatory Guide 1.67, “Installation of Over-Pressure Protection Devices,” U.S. Nuclear Regulatory
Commission, Washington, DC.
15.
NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power
Plants (LWR Edition),” Section 9.5.1, “Fire Protection System,” U.S. Nuclear Regulatory
Commission, Washington, DC.
This RG is being issued in draft form to involve the public in the development of regulatory guidance in this area. It has not received final staff
review or approval and does not represent an NRC final staff position. Public comments are being solicited on this DG and its associated
regulatory analysis. Comments should be accompanied by appropriate supporting data. Comments may be submitted through the Federal
rulemaking Web site, http://www.regulations.gov, by searching for draft regulatory guide DG-1345. Alternatively, comments may be submitted
to the Rules, Announcements, and Directives Branch, Office of Administration, U.S. Nuclear Regulatory Commission, Washington, DC 205550001. Comments must be submitted by the date indicated in the Federal Register notice.
Electronic copies of this DG, previous versions of this guide, and other recently issued guides are available through the NRC’s public Web site
under the Regulatory Guides document collection of the NRC Library at http://www.nrc.gov/reading-rm/doc-collections/reg-guides/. The DG is
also available through the NRC’s Agencywide Documents Access and Management System (ADAMS) at http://www.nrc.gov/readingrm/adams.html, under Accession No. ML18114A228. The regulatory analysis may be found in ADAMS under Accession No. ML18099A041.
APPENDIX A
SUPPLEMENTS ADDRESSED IN REVISION 38
OF REGULATORY GUIDE 1.84
1
2
Edition
Supplement Number
BNCS1 Approval Date of Code Cases in Supplement2
2010
11
December 17, 2012
2013
0
December 25, 2013
2013
1
April 7, 2013
2013
2
August 13, 2013
2013
3
October 22, 2013
2013
4
January 28, 2014
2013
5
May 7, 2014
2013
6
May 7, 2014
2013
7
October 28, 2014
BNCS = ASME Board on Nuclear Codes and Standards
Publication of supplements approximately 6 months after BNCS approval.
Appendix A to DG-1345, Page A-1
APPENDIX B
NUMERICAL LISTING OF SECTION III CODE CASES IN
SUPPLEMENT 11 TO THE 2010 EDITION AND
SUPPLEMENTS 0 THROUGH 7 TO THE 2013 EDITION1
N-60-6
N-520-51
N-755-23
N-818-13
N-834
N-844
N-71-19
N-520-6
N-792-13
N-822-14
N-836
N-8463
N-249-15
N-611
N-801-1
N-822-2
N-8373
N-284-4
N-655-22
N-812-13
N-833
N-841
______________________________
1
Code Case N-520-5 was superseded by N-520-6.
2
Code Case was approved for use in Revision 37 of Regulatory Guide 1.84.
3
Code Case is not acceptable for use; see Regulatory Guide 1.193, Revision 6 (Ref. 6)
4
Code Case N-822-1 was superseded by N-822-2.
Appendix B to DG-1345, Page B-1
APPENDIX C
NUMERICAL LISTING OF SECTION III CODE CASES
AND TABLE WHERE EACH CODE CASE IS LISTED
1
Code Case is not acceptable for use; see Rev. 6 of Regulatory Guide 1.193 (Ref. 6).
N-1-7 [T3]
N-4-12 [T5]
N-6 [T3]
N-10 [T3]
N-20 [T5]
N-20-4 [T3]
N-30-1 [T3]
N-32-4 [T4]
N-41 [T3]
N-48-2 [T3]
N-55 [T5]
N-60-1 [T5]
N-60-5 [T5]
N-62-3 [T5]
N-62-7 [T2]
N-71-7 [T5]
N-71-11 [T5]
N-71-15 [T5]
N-71-19[T2]
N-84 [T3]
N-95-1 [T5]
N-101 [T3]
N-107-1 [T3]
N-111 [T3]
N-119-2 [T5]
N-119-6 [T3]
N-123 [T3]
N-127 [T3]
N-133-2 [T5]
N-142-1 [T3]
N-154 [T5]
N-157 [T3]
N-160-1 [T3]
N-176-1 [T3]
N-180 [T3]
N-184 [T3]
N-190 [T3]
N-192-3 [T1]
N-199 [T4]
N-206 [T3]
N-208-2 [T4]
N-2 [T3]
N-4-13 [T1]
N-7 [T5]
N-11-5 [T4]
N-20-1 [T5]
N-22 [T3]
N-31 [T5]
N-33 [T3]
N-43 [T3]
N-49-4 [T3]
N-55-1 [T3]
N-60-2 [T5]
N-60-6 [T1]
N-62-4 [T5]
N-65-1 [T3]
N-71-8 [T5]
N-71-12 [T5]
N-71-16 [T5]
N-77 [T3]
N-90 [T3]
N-95-2 [T3]
N-102-1 [T5]
N-108 [T3]
N-114 [T3]
N-119-3 [T5]
N-121 [T3]
N-124 [T3]
N-131-1 [T1]
N-133-3 [T1]
N-146-1 [T4]
N-154-1 [T1]
N-158 [T3]
N-171 [T1]
N-177 [T3]
N-181 [T3]
N-188 [T5]
N-192 [T5]
N-193 [T3]
N-201-61
N-207 [T5]
N-212 [T3]
N-3-10 [T3]
N-5 [T5]
N-7-1 [T3]
N-15 [T3]
N-20-2 [T5]
N-24 [T3]
N-31-1 [T4]
N-35-1 [T3]
N-46 [T3]
N-50-1 [T3]
N-56 [T3]
N-60-3 [T5]
N-61 [T3]
N-62-5 [T5]
N-66-1 [T3]
N-71-9 [T5]
N-71-13 [T5]
N-71-17 [T5]
N-81 [T3]
N-92 [T4]
N-96-1 [T3]
N-102-2 [T3]
N-109 [T3]
N-115 [T3]
N-119-4 [T5]
N-122 [T5]
N-125 [T3]
N-133 [T5]
N-139 [T3]
N-147 [T3]
N-155-2 [T2]
N-159 [T3]
N-174 [T3]
N-178 [T3]
N-182 [T3]
N-188-1 [T3]
N-192-1 [T5]
N-196 [T5]
N-204 [T3]
N-207-1 [T3]
N-213 [T1]
Appendix C to DG-1345, Page C-1
N-4-11 [T5]
N-5-1 [T3]
N-9-4 [T3]
N-17 [T3]
N-20-3 [T5]
N-26 [T3]
N-32-3 [T3]
N-37-3 [T3]
N-47-33 [T3]
N-51-2 [T3]
N-60 [T5]
N-60-4 [T5]
N-62-2 [T5]
N-62-6 [T5]
N-68 [T3]
N-71-10 [T5]
N-71-14 [T5]
N-71-18 [T5]
N-82 [T3]
N-94 [T3]
N-100 [T4]
N-106-2 [T4]
N-110 [T4]
N-116 [T4]
N-119-5 [T5]
N-122-2 [T3]
N-126 [T3]
N-133-1 [T5]
N-140 [T3]
N-148 [T3]
N-156 [T3]
N-160 [T5]
N-175 [T4]
N-179 [T3]
N-183 [T3]
N-189 [T3]
N-192-2 [T5]
N-196-1 [T3]
N-205 [T1]
N-208-1 [T5]
N-214 [T5]
APPENDIX C
N-214-1 [T5]
N-220 [T3]
N-225 [T3]
N-229 [T3]
N-237-1 [T5]
N-241 [T3]
N-245 [T3]
N-247 [T3]
N-249-2 [T5]
N-249-6 [T5]
N-249-10 [T5]
N-249-14 [T5]
N-260 [T5]
N-262 [T3]
N-267 [T3]
N-275 [T4]
N-280 [T3]
N-284-2 [T5]
N-294 [T3]
N-299 [T5]
N-304 [T5]
N-304-4 [T3]
N-313 [T3]
N-317 [T3]
N-318-3 [T5]
N-319-1 [T5]
N-321 [T5]
N-329 [T3]
N-339 [T3]
N-345-1 [T3]
N-348-1 [T4]
N-351 [T1]
N-354-1 [T3]
N-362 [T5]
N-368 [T3]
N-370-2 [T3]
N-373-1 [T5]
N-377 [T3]
N-383 [T5]
N-388 [T3]
N-392 [T5]
N-393 [T3]
N-398 [T4]
N-410 [T3
N-413 [T3]
N-420 [T3]
N-214-2 [T3]
N-223 [T3]
N-226 [T3]
N-231 [T3]
N-237-2 [T3]
N-242 [T5]
N-246 [T5]
N-248 [T3]
N-249-3 [T5]
N-249-7 [T5]
N-249-11 [T5]
N-249-15 [T1]
N-260-1 [T5]
N-263 [T4]
N-271 [T3]
N-276 [T3]
N-281 [T3]
N-284-3 [T5]
N-295 [T3]
N-299-1 [T3]
N-304-1 [T5]
N-309 [T5]
N-314 [T4]
N-318 [T5]
N-318-4 [T5]
N-319-2 [T5]
N-321-1 [T3]
N-336 [T3]
N-341 [T3]
N-346 [T3]
N-348-2 [T4]
N-352 [T5]
N-355 [T3]
N-362-1 [T5]
N-369 [T1]
N-371 [T5]
N-373-2 [T5]
N-378 [T3]
N-383-1 [T4]
N-391 [T5]
N-392-1 [T5]
N-394 [T3]
N-403 [T3]
N-411 [T5]
N-414 [T3]
N-421 [T3]
N-215 [T3]
N-224 [T5]
N-227 [T3]
N-233 [T3]
N-238 [T4]
N-242-1 [T4]
N-246-1 [T5]
N-249 [T5]
N-249-4 [T5]
N-249-8 [T5]
N-249-12 [T5]
N-252 [T4]
N-260-2 [T4]
N-265 [T5]
N-272 [T3]
N-277 [T3]
N-282 [T3]
N-284-4 [T1]
N-296 [T3]
N-300 [T3]
N-304-2 [T5]
N-309-1 [T3]
N-315 [T1]
N-318-1 [T5]
N-318-5 [T3]
N-319-3 [T1]
N-324 [T3]
N-337 [T5]
N-342 [T3]
N-347 [T3]
N-349 [T3]
N-352-1 [T3]
N-357 [T3]
N-362-2 [T3]
N-370 [T5]
N-371-1 [T3]
N-373-3 [T1]
N-379 [T5]
N-384-1 [T3]
N-391-1 [T5]
N-392-2 [T5]
N-395 [T3]
N-404 [T4]
N-411-1 [T4]
N-418 [T5]
N-430 [T4]
Appendix C to DG-1345, Page C-2
N-217-1 [T3]
N-224-1 [T3]
N-228 [T3]
N-237 [T5]
N-240 [T3]
N-243 [T3]
N-246-2 [T3]
N-249-1 [T5]
N-249-5 [T5]
N-249-9 [T5]
N-249-13 [T5]
N-259 [T3]
N-261 [T3]
N-265-1 [T3]
N-274 [T4]
N-279 [T4]
N-284-1[T5]1
N-292 [T4]
N-298 [T3]
N-302 [T3]
N-304-3 [T5]
N-310-1 [T4]
N-316 [T3]
N-318-2 [T5]
N-319 [T5]
N-320 [T3]
N-328 [T3]
N-337-1 [T3]
N-345 [T5]
N-348 [T4]
N-350 [T4]
N-353 [T3]
N-359 [T3]
N-367 [T3]
N-370-1 [T5]
N-372 [T3]
N-376 [T3]
N-379-1 [T3]
N-387 [T3]
N-391-2 [T3]
N-392-3 [T3]
N-397 [T4]
N-405-1 [T1]
N-412 [T3]
N-418-1 [T3]
N-433 [T3]
APPENDIX C
N-438 [T5]
N-438-4 [T3]
N-440-1 [T3]
N-442 [T3]
N-451 [T3]
N-453-2 [T5]
N-455 [T5]
N-464 [T3]
N-469 [T5]
N-474-1 [T5]
N-482 [T3]
N-484-1 [T3]
N-497 [T5]
N-500-2 [T5]
N-502 [T3]
N-510-11
N-520-1 [T5]
N-520-5 [T5]
N-539 [T1]
N-550 [T3]
N-564 [T5]
N-570 [T5]
N-579 [T1]
N-594 [T5]
N-595-21
N-607 [T1]
N-620 [T1]
N-625-1 [T1]
N-634
N-637 [T5]
N-644-1 [T1]
N-650 [T1]
N-656 [T4]
N-659-21
N-698 [T1]
N-708 [T1]
N-727 [T1]
N-738 [T1]
N-7551
N-757 [T5]
N-759-2 [T1]
N-7612
N-777 [T1]
N-7921
N-7961
N-8041
N-438-1[T5]
N-439 [T5]
N-441 [T5]
N-443 [T5]
N-452 [T1]
N-453-3 [T1]
N-455-1 [T1]
N-466 [T5]
N-469-1 [T1]
N-474-2 [T3]
N-483-21
N-492 [T5]
N-497-1 [T3]
N-500-3 [T5]
N-505 [T1]
N-511 [T1]
N-520-2 [T5]
N-520-6 [T1]
N-540 [T3]
N-551 [T3]
N-564-1 [T5]
N-570-1 [T5]
N-580 [T5]
N-594-1 [T1]
N-595-3 [T5]
N-608 [T3]
N-621 [T5]
N-626 [T2]
N-635 [T5]
N-637-1 [T1]
N-6451
N-655 [T5]
N-657 [T1]
N-6731
N-699 [T1]
N-710 [T1]
N-7281
N-741 [T1]
N-755-11
N-757-1 [T2]
N-760 [T5]
N-763[T1]
N-782 [T1]
N-792-11
N-801 [T5]
N-8071
N-438-2 [T5]
N-439-1 [T3]
N-441-1 [T5]
N-443-1 [T5]
N-453 [T5]
N-454 [T5]
N-459 [T3]
N-466-1 [T3]
N-470 [T3]
N-475 [T3]
N-483-32
N-492-1 [T3]
N-500 [T5]
N-500-4 [T1]
N-507 [T3]
N-5191
N-520-3 [T5]
N-525 [T1]
N-548 [T1]
N-558 [T1]
N-564-2 [T1]
N-570-2 [T1]
N-580-1 [T5]
N-5951
N-595-4 [T4]
N-610 [T1]
N-621-1 [T1]
N-631 [T1]
N-635-1 [T1]
N-642 [T1]
N-645-11
N-655-1 [T5]
N-6591
N-692 [T1]
N-703 [T1]
N-7211
N-732 [T3]
N-744 [T1]
N-755-21
N-759 [T5]
N-760-1 [T5]
N-767 [T1]
N-785 [T1]
N-7931
N-801-1 [T1]
N-811 [T1]
Appendix C to DG-1345, Page C-3
N-438-3 [T5]
N-440 [T5]
N-441-2 [T3]
N-443-2 [T3]
N-453-1 [T5]
N-454-1 [T1]
N-462 [T3]
N-468 [T3]
N-474 [T5]
N-476 [T3]
N-484 [T5]
N-493 [T1]
N-500-1 [T5]
N-501 [T3]
N-510 [T5][T5]
N-520 [T5]
N-520-4 [T5]
N-5301
N-549 [T3]
N-559 [T3]
N-5651
N-572 [T3]
N-580-2 [T1]
N-595-11
N-596 [T3]
N-611 [T3]
N-625 [T5]
N-632 [T1]
N-636 [T1]
N-644 [T5]
N-646 [T1]
N-655-2 [T1]
N-659-11
N-6931
N-7071
N-725 [T1]
N-736 [T1]
N-746 [T1]
N-756 [T1]
N-759-1 [T5]
N-760-2 [T1]
N-774 [T1]
N-7911
N-7941
N-802 [T3]
N-8121
APPENDIX C
N-812-11
N-8181
N-822 [T5]
N-833[T1]
N-841[T1]
1332-6 [T5]
1361-2 [T4]
1414-3 [T5]
1461-1 [T3]
1477-1 [T3]
1494-1 [T3]
1516-1 [T5]
1531 [T3]
1536 [T3]
1552 [T5]
1555-1 [T3]
1569 [T4]
1581 [T3]
1601 [T3]
1606 [T5]
1608-1 [T3]
1615 [T3]
1622 [T3]
1633 [T3]
1636-1 [T4]
1644-2 [T5]
1644-6 [T5]
1650 [T3]
1661 [T3]
1672 [T3]
1682 [T5]
1684 [T3]
1689-1 [T4]
1701 [T5]
1713 [T3]
1720 [T5]
1740 [T3]
1743 [T3]
1761 [T5]
1768 [T3]
1774 [T5]
1783 [T5]
1808 [T3]
N-815 [T1]
N-818-11
N-822-1[T5]
N-834[T1]
N-844[T1]
1335-9 [T5]
1395-3 [T5]
1414-4 [T5]
1470-2 [T3]
1484-1 [T5]
1506 [T3]
1521-1 [T4]
1532 [T3]
1540-1 [T5]
1553 [T5]
1557-2 [T5]
1573 [T3]
1583 [T3]
1602-1 [T3]
1606-1 [T4]
1613 [T3]
1616 [T3]
1623 [T3]
1634 [T5]
1637 [T3]
1644-3 [T5]
1645 [T3]
1651 [T3]
1662 [T3]
1675 [T3]
1682-1 [T3]
1685 [T3]
1690 [T3]
1702 [T5]
1714 [T5]
1720-1 [T5]
1741 [T5]
1755 [T5]
1765 [T3]
1769 [T5]
1775 [T3]
1783-1 [T4]
1810 [T3]
N-816 [T1]
N-819 [T1]
N-822-2[T1]
N-836[T1]
N-8461
1337-9 [T5]
1407-2 [T5]
1423-2 [T4]
1471-1 [T3]
1484-2 [T5]
1508 [T5]
1528-3 [T4]
1533 [T3]
1541-1 [T5]
1553-1 [T3]
1567 [T3]
1574 [T3]
1587 [T3]
1603 [T3]
1607 [T5]
1614 [T3]
1618 [T5]
1625 [T3]
1634-1 [T5]
1644 [T5]
1644-4 [T5]
1648 [T3]
1657 [T3]
1664 [T3]
1676 [T3]
1683 [T5]
1686 [T3]
1691 [T3]
1703 [T3]
1718 [T3]
1722 [T5]
1741-1 [T3]
1759 [T5]
1766 [T3]
1769-1 [T3]
1777 [T3]
1787 [T3]
1819 [T3]
Appendix C to DG-1345, Page C-4
N-817 [T1]
N-8201
N-8281
N-8371
1141-7 [T3]
1337-10 [T5]
1412-4 [T4]
1434-1 [T3]
1475-1 [T3]
1492 [T5]
1515 [T3]
1529 [T3]
1535-2 [T3]
1541-2 [T5]
1555 [T5]
1568 [T3]
1580-1 [T3]
1590 [T3]
1605 [T3]
1607-1 [T4]
1614 [T3]
1618-1 [T5]
1626 [T5]
1635-1 [T4]
1644-1 [T5]
1644-5 [T5]
1649 [T3]
1659 [T3]
1666 [T3]
1678 [T3]
1683-1 [T3]
1689 [T5]
1695 [T5]
1706 [T3]
1719 [T3]
1728 [T3]
1742 [T3]
1760 [T3]
1767 [T3]
1773 [T3]
1780 [T5]
1798 [T3]
| File Type | application/pdf |
| File Modified | 2018-08-03 |
| File Created | 2018-08-03 |