Boundary and Annexation Survey

E-mail: BASSC 1L and Text
Subject: YYYY Boundary and Annexation Survey (BAS) State Certification -

Dear Governor «LAST_NAME»:
The U.S. Census Bureau conducts the Boundary and Annexation Survey (BAS) every year to
update legal boundaries, names, and statuses of all governments. The Census Bureau uses this
boundary information for data collection, tabulation, and dissemination for the decennial
census, American Community Survey (ACS), Population Estimates Program (PEP), and many
other censuses and surveys. Following each BAS cycle, the Census Bureau conducts the BAS
State Certification Program to review and certify updates sent through BAS.
As part of the BAS State Certification Program, we compile listings of boundary changes
reported to the previous BAS cycle by governments within your state and distribute them to the
governor-appointed State Certifying Official (SCO). If state law requires local governments to
report boundary updates to the state, the SCO is responsible for reviewing the listings and
certifying that the information is correct. This program ensures that the Census Bureau’s
inventory of local governments is accurate and that the boundary changes reported to BAS
comply with your state laws.
Please provide the name and contact information of the person you wish to appoint as the SCO
for the state of «STATE» on the attached BAS State Certification SCO Appointment Form and
email the completed form to by . If you do not respond by this
date, we will distribute materials to the previous SCO listed on the attached form. We plan to
distribute the BAS State Certification materials for review to the SCO in December .
Thank you for your participation in the BAS State Certification Program.
CONTACT INFORMATION
Email:
Phone: 1-800-972-5651
BAS State Certification Program Website:
General BAS Information:

Attachments: BAS State Certification SCO Appointment Form