LUCA Forms, Letters, User Guides, and other Items

Local Update of Census
Addresses (LUCA) Program State
Government Information Booklet

Issued January 2007

2010 Decennial Census Program
D-1693S

The Local Update of Census Addresses
(LUCA) Program is an integral part of
the 2010 Decennial Census Program
and utilizes the expertise of state governments to improve the accuracy and
completeness of the address list used to
take the census. State governments can
contribute to a complete enumeration of
their communities by reviewing and commenting on the list of housing unit and
group quarters addresses that the U.S.
Census Bureau will use to deliver census
questionnaires.
Background
Recognizing that a complete and accurate address list is essential to a complete and accurate census, Congress
passed the Census Address List Improvement Act of 1994 (Public Law 103-430)
authorizing the Census Bureau to provide
the census address list for review and
comment by tribal, state, and local government liaisons who agree to conditions
of confidentiality.
Title 13, United States Code (U.S.C.),
provides for the confidential treatment of
census-related information and protects
the addresses contained on the Census
Bureau’s address list. Liaisons and reviewers appointed by the state governor
to review the Census Bureau’s address
list are required to sign a confidentiality agreement and abide by the Census
Bureau’s security guidelines. Each LUCA
liaison is also required to perform a data
security self-assessment check.

After receiving signed and completed
confidentiality agreements and security
self-assessment checklists, the Census
Bureau will send Title 13-protected LUCA
materials to state liaisons.
Why the LUCA Program Is
Important to Your State
Accurate census data are important to
your state in a number of ways. In addition to the constitutional requirement for
the decennial census to apportion seats
in the U.S. House of Representatives,
census data are used to allocate federal
monies to state governments. Census
data provide the statistical support for
grant applications that fund community,
social, economic, and environmental
programs and other needed improvements and enhancements. Census data
also help communities within your state
plan for future needs.
Training and Support
Training workshops conducted by Census Bureau staff will provide you with
“hands-on” experience using the LUCA
program materials. Self-training aids
will be available to participants who are
unable to attend the workshops. In addition, the 2010 Census Local Update of
Census Addresses (LUCA) Program
User’s Guide provides detailed instructions and examples for conducting the
LUCA review.

U.S. Department of Commerce
Economics and Statistics Administration
U.S. CENSUS BUREAU

The LUCA Participation Options
The 2010 Census LUCA program offers three
participation options:
Option 1

What’s New?
The 2010 Census LUCA program offers a number of
improvements:
• One review cycle for all
address types.

— Title 13 Full Address List Review
Option 2
— Title 13 Local Address List Submission

• 120 calendar days for
review.
• More advance notice.

Option 3
— Non-Title 13 Local Address List Submission
Option 1 and Option 2 require participants to
sign the confidentiality agreement in compliance
with Title 13, U.S.C., and the data security selfassessment checklist. A signed confidentiality
agreement is not required for Option 3 because
Title 13 data are not provided.

• Comprehensive program
communications, including periodic contact.

Option 1—Title 13 Full Address List Review
Option 1 allows you to review the entire census
address list for your state. This includes both city-style
addresses (for example, 101 Main Street) and noncitystyle addresses (for example, P.O. box, rural route, etc.).
This option allows you to update any city-style address
on the census address list. For census blocks containing
all noncity-style addresses, you can only challenge
the count of addresses on the address count list. If
a census block has a mix of city-style and noncitystyle addresses, you can update individual city-style
addresses or challenge the count of addresses for the
census block, but you cannot do both.
Each LUCA liaison and reviewer must sign and return
the confidentiality agreement. The LUCA liaison is also
required to perform a data security self-assessment that
must be signed and returned along with the confidentiality agreement form.

• Three program options.
• A MAF/TIGER® Partnership Software (MTPS)
application that combines the census address
list, address count list,
and digital maps in an
easy-to-use software
package.

The Census Bureau provides:
• A complete Census Bureau address list for your
jurisdiction.
• A count of addresses by census block within your
jurisdiction.
• Census Bureau digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software (if requested).
• Training.
This option allows you to update any city-style
address on the census address list or challenge
counts on the address count list.

You provide:
• Updates (additions, deletions, corrections) to the
Census Bureau’s city-style addresses.
• Challenges to the address counts in census blocks
with noncity-style addresses.
• Updates and corrections to the features on the
Census Bureau’s digital shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.

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Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

Option 2—Title 13 Local Address
List Submission
The Title 13 Local Address List
Submission option allows you to
submit your computer-readable
address file (city-style addresses
only) in a predefined Census
Bureau format. The Census Bureau
will provide our address list
(computer-readable only) as a
reference for your state. Our
address list includes both citystyle addresses and noncity-style
addresses. You cannot update the
census address list or challenge the census address
counts. The Census Bureau will match your address file
to ours and make corrections to our census address list.
Each LUCA liaison and reviewer must sign and return
the confidentiality agreement. The LUCA liaison is also
required to perform a data security self-assessment that
must be signed and returned along with the confidentiality agreement.
In this option, you will receive a complete Census
Bureau address list and an address count list as a
reference for your state.

Option 3—Non-Title 13 Local Address
List Submission
The Non-Title 13 Local
Address List Submission
option offers you an opportunity to submit your state’s
computer-readable address
file (city-style addresses only)
in a predefined Census
Bureau format.

The Census Bureau provides:
• A complete Census Bureau address list for your state.
• A count of addresses by census block within
your state.
• Census Bureau digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software (if requested).
• Training.
You provide:

Option 2 allows you to submit
your local address file in a
Census Bureau predefined
computer-readable format.

• Your local address
file (containing
only city-style
addresses) in a predefined computer-readable format.
• Updates and corrections to the features on the
Census Bureau’s digital shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.

The Census Bureau provides:
• A count of addresses by census block within your
state (computer-readable).
• Census Bureau digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software (if requested).
• Training.

Under this option, you do not
receive the census address list. You do receive, as a
reference, an address count list that contains address
counts for each of the census blocks within your state.
The Census Bureau will match your address file to ours
and make corrections to our census address list.
Option 3 allows you to submit your state’s
address file in a Census Bureau predefined
computer-readable format.
A signed confidentiality agreement is not
required for Option 3.

You provide:
• Your state’s address file (containing only city-style
addresses) in a predefined Census Bureau computerreadable format.
• Updates and corrections to the features on the
Census Bureau’s digital shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.

Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

3

LUCA Program Materials for State Governments
The Census Bureau provides the 2010 Census LUCA program materials required for your participation. The LUCA
program address lists are available on CD-ROM or DVD-ROM media. You may receive all or some of the program
materials listed below, depending on the participation option you choose.
• 2010 Census LUCA Address List
Contains all of the Census Bureau’s addresses for your state in a
pipe-delimited ASCII file format.
• 2010 Census LUCA Address Count List
Contains counts of the number of housing unit and group quarters
addresses for each census block within your state in a pipedelimited ASCII file format.

The 2010 Census LUCA program
address lists arw available on
CD-ROM or DVD-ROM media.

• 2010 Census Local Update of Census Addresses (LUCA) Program User’s Guide
Contains your instructions for updating the address list, address count list, and digital shapefiles.
• 2010 Census LUCA Digital Shapefiles
Created from the Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER®)
System, allows you to submit feature updates in a digital format.
• MAF/TIGER® Partnership Software
Software application that combines the census address list, address count list, and digital maps in a
software package.

Computer-Readable Address Count List Record Layout
The address count list contains the count of housing unit and group quarters addresses for each census block
within your state. Each census block record is at least 57 characters in length and contains nine (9) fields of information. The character length of each record may vary.
Maximum
character
length
12
2
3
7
5
7
7
7
7

4

Field name
Entity ID code
State code
County code
Census tract and suffix
Census block and suffix
Census count of housing unit addresses
State count of housing unit addresses
Census count of group quarters addresses
State count of group quarters addresses

Description/notes
Unique code assigned by the Census Bureau to each entity
2-digit current state code
3-digit current county code
4-digit current census tract number, a period, plus a 2-digit number suffix
4-digit current census block number, a period, plus a 1-digit alpha character suffix,
if applicable
Census Bureau’s most recent count of housing unit addresses
Blank field to enter the state’s count of housing unit addresses
Census Bureau’s most recent count of group quarters addresses
Blank field to enter the state’s count of group quarters addresses

Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

Computer-Readable Address List Record Layout
The information contained on each address record includes census geographic codes, such as state and county
codes, and census tract and block numbers, as well as address information and group quarters identification.
Each address record has a maximum length of 462 characters and contains 26 fields of information. The character
length for each record may vary.

Maximum
character
length
12
7
9
1
2
3
7
5
1
35
3
2
14
100
14
2
3
100

Field name
Entity ID code
Line number
MAFID
Action code
State code
County code
Census tract number
Census block number
Group quarters flag
House number
Street name prefix qualifier
Street name prefix direction
Street name prefix type
Street name
Street name suffix type
Street name suffix direction
Street name suffix qualifier
Location description or GQ name

53
5
50
5
5

Apartment/unit number
City-style mailing ZIP Code
Noncity-style mail delivery address
Noncity-style mailing ZIP Code
Structure point

11
12
1

Structure latitude
Structure longitude
City-style address flag

Description/notes
Unique code assigned by the Census Bureau to each entity
Unique number for each address record in the file
Unique identification assigned to each census address
Valid codes: A, C, D, J, or N; entered by participant
2-digit current state code
3-digit current county code
4-digit current census tract number, a period, plus a 2-digit numeric suffix
4-digit current census block number, plus a 1-digit alpha character suffix, if applicable
Displays a ‘‘Y’’ if the unit is a group quarters
Housing unit’s or group quarters’ assigned house number
e.g., BUS, ALT, OLD
e.g., N, W, SE
e.g., HWY, RT, US
Full street or road name
e.g., ST, CT, AVE, DR
e.g., N, W, SE
e.g., EXT, LP, BYP
Description of living quarters (e.g., red ranch w/white shutters) or name of group
quarters (e.g., Dobbs Hall—University of Dobbs)
Within structure descriptor or identifier, such as APT 5 or 1st FL FRNT
5-digit ZIP Code for a city-style mailing address
Rural route and box number, post office box number, etc.
5-digit ZIP Code for a noncity-style mailing address
4-digit number, plus 1-digit alpha assigned by the Census Bureau to structures in areas
that contain predominately noncity-style addresses (RR, P.O. box #, general delivery, etc.)
The latitude coordinate in degrees, with 6 implied decimals
The longitude coordinate in degrees, with 6 implied decimals
Displays a ‘‘Y’’ if the address is city-style, ‘‘N’’ if noncity-style

Census Bureau Digital Shapefiles
The digital shapefiles, created from the Census Bureau’s TIGER®
System, allow you to submit feature corrections digitally. Shapefiles
require the use of geographic information system (GIS) software.
All shapefiles produced by the Census Bureau are in Environmental
Systems Research Institute (ESRI) shapefile format. Participants must
use the Census Bureau-supplied digital shapefiles to make digital
submissions. The Census Bureau-supplied shapefiles are in a format
that contains all of the current codes necessary to correct addresses
as well as submit feature corrections.
You should review the digital shapefiles concurrent with your review
of the address list. While reviewing the digital shapefiles, you may
correct features with the exception of legal boundaries. The Census
Bureau will review your digital shapefiles submission and correct the
TIGER® database.
The digital shapefiles do not contain Title 13 data.

Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

5

MAF/TIGER® Partnership Software
The MAF/TIGER® Partnership Software (MTPS) application is new for the 2010 Census LUCA program. The
MTPS provides you with the ability to concurrently view
and update the census address list, address count list,
and associated geographic features.

address list, GIS files, or imagery files for comparison
with Census Bureau data.
The MTPS software requires a Windows 98 or more current operating system. Internet access is not required.

If you elect to use the MTPS, the Census Bureau will provide the MTPS application disk, the census address list,
address count list, and digital shapefiles on CD-ROM or
DVD-ROM disks.
When you complete your review, the MTPS has a function that saves your updates in the Census Bureau’s
required format—facilitating our ability to more accurately process your state’s submission.
There are several tools in the MTPS that make working with the address list easier. Among the tools are
predefined address sorts and a mechanism that allows
you to create new address sorts. There are buttons for
adding and copying a single record once or multiple
times (for multiple-unit structures having the same
basic street address). You can also import your state’s

The MAF/TIGER® Partnership Software application is
new for the 2010 Census LUCA Program.

When Can State Governments Participate?
Your state will receive a 2010 Census LUCA invitation
and registration package in July 2007. Once the Census
Bureau receives your completed registration materials,
the LUCA program materials will be mailed to your state
LUCA liaison. You have 120 calendar days from the
receipt of your LUCA materials to conduct your review
and return your submission. The review and update
period is from August 2007 to April 2008.

You have 120 calendar days from
the receipt of your LUCA materials
to conduct your review and return
your submission.

Strategies for Review

For example:

Each participating state government must decide how
to conduct its review of the LUCA materials. Consider
your available time, the local address information you
have available, as well as your staff and computer
resources. If a complete review is not possible, the Census Bureau recommends that you focus your review on
areas within your state where addresses may likely be
missed or the address data may be incorrect.

• Areas of new construction

Focus your review on areas within
your state where addresses may
likely be missed or the address
data may be incorrect.
State governments are in the best position to identify
areas with potentially missing or incorrect addresses.

• E-911 address conversion areas
• Single-family
homes converted to
multifamily homes,
and vice versa
• Warehouses converted to residential lofts
• New mobile home parks or new scattered mobile
homes
• Apartment buildings with irregular or missing
numbering schemes for the individual units
• Annexed land
• Areas along governmental boundaries

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Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

Suggested Address Sources
Each state LUCA participant will likely have different address sources. In addition, there may be a list of
addresses maintained by various agencies within your
state government.

• Planning and zoning records
• Local utility records
• School enrollment records

The following is a list of address sources that may be
available to you:

• Driver’s license files

• New housing construction or building permits

• Annexation records

• E-911 address files

• Assessment or taxation files

• Housing inspection records

• Voter registration files

What Happens to Your Corrections?
Once you have reviewed and corrected the Census
Bureau address list and/or the address count list and
digital shapefiles, you must return your corrected materials to your Census Bureau regional office. The Census
Bureau will then:
• Review and process the suggested address
corrections.
• Update the Census Bureau’s geographic database
with the suggested digital shapefile corrections.
• Conduct the Address Canvassing (field check) Operation to validate the census address list, including
your government’s corrections.

The Feedback Process
The Census Bureau will provide feedback materials
after conducting the Address Canvassing Operation.
This field check will determine the validity of all of
the corrections your state submitted. In addition, field
checks will ensure that the Census Bureau has complete address coverage as well as current map features
for your state, even if you decide not to participate in
the LUCA program. Depending upon the participation
option you choose, you will receive the following feedback materials:
Option 1—Title 13 Full Address List Review
An updated:
• Census address list with detailed feedback on each
address that your state commented on.
• Address count list.
• Digital shapefiles for your state.

Option 2—Title 13 Local Address
List Submission
An updated:
• Census address list with detailed feedback on
each address that your state provided.
• Address count list.
• Digital shapefiles for your state.
Option 3—Non-Title 13 Local Address
List Submission
An updated:
• Address count list.
• Digital shapefiles for your state.
The feedback materials are only available in a
computer-readable format. Your Census Bureau
regional office can answer questions regarding
your state’s feedback materials.

Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

7

Summary of LUCA Program Activities
In July 2007, your state will receive your 2010 Census
LUCA invitation and registration package.

• Plan your strategy for reviewing the 2010 Census
LUCA materials.
• Obtain 2010 Census LUCA training.

At that time, you will:

• Review and correct the 2010 Census LUCA materials.

• Determine which participation option your state
prefers.

• Submit corrected LUCA materials.

• Designate a 2010 Census LUCA liaison.

• Review feedback materials containing comments on
your address submissions.

- Sign and return the confidentiality agreement
and self-assessment checklist form (required for
Option 1 and Option 2).
- Sign and return the 2010 Census LUCA program
registration form.
Next, you will:
• Identify available state address sources for your
2010 Census LUCA review.

Finally, you will:

• Appeal address discrepancies if you do not agree
with your feedback.
• Return all Title 13 materials to your Census Bureau
regional office.
To find out more about the 2010 Census LUCA
program, go to .

The 2010 Census LUCA Program Schedule
TIME FRAME

8

ACTIVITY

January 2007

LUCA advance notice letters mailed to the Governor of each state and other contacts
within the state’s government.

July 2007

Invitation letters and registration materials mailed to the Governor of each state and
other contacts within the state’s government.

July 2007 to
January 2008

Invited governments register for LUCA, and the Census Bureau ships the LUCA review
materials to each participating government.

August 2007 to
April 2008

LUCA participants review and update the address list and digital shapefiles and
return their comments to the Census Bureau’s regional office within 120 days of
receipt of materials.

April 2008 to
October 2008

Census Bureau reviews participants’ LUCA submissions and updates the Master
Address File and TIGER® geographic database.

November 2008
to May 2009

Census Bureau prepares for and conducts the Address Canvassing Operation using
global positioning system (GPS) equipped hand-held computers.

June 2009 to
October 2009

LUCA participants receive feedback materials showing how the Census Bureau
processed each state’s LUCA submission.

September 2009 to
December 2009

LUCA participants review their LUCA feedback and have the opportunity to appeal the
results to the LUCA Appeals Office (Option 1 and Option 2).

September 2009 to
January 2010

LUCA Appeals Office reviews and adjudicates appeals.

Local Update of Census Addresses (LUCA) Program State Government Information Booklet
U.S. Census Bureau

Census Bureau Regional Offices—Contact Information

Georgia
Alabama

Atlanta Regional Office: Geography
101 Marietta Street, NW, Ste. 3200
Atlanta, GA 30303-2700
(404) 331-1339
Fax: (404) 331-1570
E-mail:
atlanta.geography@census.gov

Detroit Regional Office: Geography
1395 Brewery Park Boulevard, Ste. 100
Detroit, MI 48207
(313) 656-0183
Fax: (313) 259-2529
E-mail:
detroit.geography@census.gov

Boston Regional Office: Geography
4 Copley Place, Ste. 301
P.O. Box 9108
Boston, MA 02117-9108
(617) 424-4513
Fax: (617) 424-0547
E-mail:
boston.geography@census.gov

Kansas City Regional Office: Geography
1211 North 8th Street
Kansas City, KS 66101-2129
(913) 551-6833
Fax: (913) 551-6780
E-mail:
kansas.city.geography@census.gov

Charlotte Regional Office: Geography
901 Center Park Drive, Ste. 106
Charlotte, NC 28217-2935
(704) 424-6420
Fax: (704) 424-6966
E-mail:
charlotte.geography@census.gov

Los Angeles Regional Office: Geography
15350 Sherman Way, Ste. 400
Van Nuys, CA 91406
(818) 267-1724
Fax: (818) 267-1714
E-mail:
los.angeles.geography@census.gov

Chicago Regional Office: Geography
1111 W. 22nd Street, Ste. 400
Oak Brook, IL 60523-1918
(630) 288-9245
Fax: (630) 288-9313
E-mail:
chicago.geography@census.gov

New York Regional Office: Geography
New York
395 Hudson Street, Ste. 800
New York, NY 10014
Pennsylvania
(212) 584-3430
Fax: (212) 584-3419
E-mail:
new.york.geography@census.gov

Dallas Regional Office: Geography

Philadelphia Regional Office: Geography

8585 N. Stemmons Freeway, Ste. 800S

833 Chestnut Street, Ste. 504

Dallas, TX 75247

Philadelphia, PA 19107-4405

(214) 253-4470

(215) 717-1830

Fax: (214) 655-5365

Fax: (215) 717-0875

E-mail:

E-mail:

dallas.geography@census.gov

philadelphia.geography@census.gov

Michigan

Ohio
West
Virginia

Florida

Maine
Vermont
New Hampshire
Massachusetts

New York

Rhode Island
Connecticut

Minnesota

Iowa
Kansas

Missouri

Oklahoma

Arkansas

Puerto Rico

Virginia
Kentucky
North Carolina
Tennessee
South Carolina

Wisconsin

Illinois

Indiana

Mississippi

Texas

Louisiana

Montana North Dakota
Wyoming

South Dakota
Nebraska

Nevada
Utah
Arizona

Colorado
New Mexico

Denver Regional Office: Geography
6900 W. Jefferson Avenue, Ste. 100
Denver, CO 80235
(303) 264-0290
Fax: (303) 969-6776
E-mail:
denver.geography@census.gov

Southern
California

Hawaii

Connecticut

New York
Region

New Jersey

Seattle Regional Office: Geography
601 Union Street, Ste. 3800
Seattle, WA 98101-1074
(206) 381-6260
Fax: (206) 381-6313
E-mail:
seattle.geography@census.gov

Pennsylvania
New Jersey
Delaware
Washington, DC
Maryland

Alaska
Washington

Northern
California

Oregon

Idaho