A.C.E. Revision II
Decision -- Intercensal Estimates
Frequently Asked Questions
and Rules for Taking the Census
Local Update of Census Addresses (LUCA) Program
The Local Update of Census Addresses (LUCA) program, also
known as the Address List Review program, is a partnership
program that will allow the Census Bureau to benefit from
local knowledge in developing its Master Address File (MAF).
Participants will contribute to a more complete and accurate
census for their area.
The LUCA program is made possible by the Census Address List
Improvement Act of 1994 (Public Law 103-430) which, for the
first time, authorizes designated representatives of local and
tribal governments to review the MAF. The program will operate
- The local or tribal government will designate a liaison
to review the portion of the MAF covering the area under its
jurisdiction. The liaisons will be subject to the same
restrictions prohibiting the disclosure of census information
as census workers are. The address list is confidential under
Title 13 and participants must sign an oath promising to
protect the confidentially of the addresses.
- The Census Bureau will send the liaisons listings from
the MAF (in either paper or electronic form), corresponding
maps, and a tally of MAF records for each census block in
- In areas with city-style address, the liaison will
provide input regarding individual addresses on the list, as
well as addresses missing from the list that should be added.
The Census Bureau will verify this input and provide feedback
to the participants about the results.
- In areas with noncity-style addresses (i.e., rural route
and box number), the liaisons will provide input regarding
the completeness and accuracy of the housing unit counts for
each block. The Census Bureau will revisit the blocks
identified as having a different number of housing units and
provide feedback about the number of housing units found.
- Public Law 103-430 allows the local participants to
appeal final Census Bureau decisions.