UNITED STATES DEPARTMENT OF COMMERCE 
Economics and Statistics Administration 

BAS-2L 

U.S. Census Bureau 
(9-2012) 

Washington, DC 20233-0001 
OFFICE OF THE DIRECTOR 

FROM THE DIRECTOR 

U.S. CENSUS BUREAU 
The U.S. Census Bureau conducts the annual Boundary and Annexation Survey (BAS) to update our 
records regarding changes to legal boundaries, names, and governmental status for federally recognized 
American Indian reservations, off-reservation trust land, and tribal subdivisions within the United States 
effective on or before January 1 of the survey year. This voluntary survey is an important opportunity for 
you to ensure that we have your correct boundary and legal name. The Census Bureau will use the 
boundary information you provide to report data from the American Community Survey (ACS) and other 
Census programs and surveys. 

The Census Bureau is requesting that your governmental unit review your boundary online 
<http://www.census.gov/geo/www/bas/bashome.html> and respond to the survey online or return the 
enclosed Annual Response Form. Place an "X" in the appropriate box to indicate whether your governmental 
unit has boundary changes to report. If your governmental unit has changes to report, place an "X" 
in the box next to your preferred submission method. The Census Bureau will only ship maps and other 
materials to governments who request them. For an explanation of the various submission methods, please 
refer to the reverse side of the Annual Response Form. Confirm that all contact information is correct. 

Respond online, or fax the completed form to the Census Bureau before February 15 using the toll-free 
number, 1–800–416–3262. Fax the form only. Please do not include a cover sheet. You may also mail the 
form to the Census Bureau in the enclosed postage-paid envelope or send by e-mail to 
<geo.bas@census.gov>. 

If your governmental unit has boundary changes to report, please submit them to the Census Bureau by 
March 1. All annexations received by March 1 will be included in this year’s boundary delivery for the 
ACS. All annexation and boundary corrections received by May 31 will be included in BAS materials for 
next year. BAS Respondent Guides, forms, maps and shapefiles are available for download from the 
Census Web site <http://www.census.gov/geo/www/bas/bashome.html>. 

The Census Bureau appreciates your response to this important voluntary survey. If you need any 
assistance with this request, please e-mail <geo.aiana@census.gov>, telephone 1–800–972–5651, or 
visit <http://www.census.gov/geo/www/bas/bashome.html>. 

Sincerely, 

Thomas L. Mesenbourg, Jr. 
Acting Director 

Enclosures 


census.gov