Transportation: authorities; public transportation authority millages; modify, and end the ability of political subdivisions to opt out of membership in public transportation authorities. Amends secs. 8, 18 & 29 of 1986 PA 196 (MCL 124.458 et seq.).

Eliminates the opt-out option for large counties within SMART-area transit authorities; once current millage expires, opt-out jurisdictions join the county and pay the millage.