16-1103. Legislative and congressional redistricting; census enumeration For purposes of adopting legislative and congressional district boundaries, the legislature or any entity that is charged with recommending or adopting legislative or congressional district boundaries shall make its recommendations or determinations using population data from the United States bureau of the census identical to those from the actual enumeration conducted by the bureau for the apportionment of the representatives of the United States house of representatives in the United States decennial census and shall not use census bureau population counts derived from any other means, including the use of statistical sampling, to add or subtract population by inference.
Arizona Legal Code