MI HB6171

Increases population thresholds for determining county commissioner district numbers, raising minimum commissioners from 5 to 7 for counties under 50,000 and expanding maximum to 21 for counties over 500,001.

Restructures county apportionment commission membership to include county clerk, statutory chairpersons of the 2 major political parties, and 1 additional member from each party selected by the county board from lists submitted by party chairpersons.

Requires districts to meet a maximum 5% population deviation from target population and 10% maximum difference between most and least populous districts, with detailed partisan advantage testing using proportionality and mean-median difference calculations.

Mandates public transparency through recorded or transcribed public meetings, at least 3 public hearings in counties over 250,000, and 7-day public review period before adopting apportionment plans.

If apportionment is not finalized within 60 days, a 3-judge panel from the court of appeals (selected after each major political party strikes 1 of 5 randomly chosen judges) must apportion the county.