Retirement: public school employees; certain required annual contributions; modify. Amends secs. 41 & 43e of 1980 PA 300 (MCL 38.1341 & 38.1343e).

This bill modifies Michigan's Public School Employees Retirement Act to update how annual contribution rates are calculated for the state's public school retirement system. It establishes specific rules requiring that contribution rates for both current service and past unfunded service generally cannot decrease from one fiscal year to the next, with certain exceptions for retiree health benefits and university reporting units. The legislation also mandates that specific years must match actuarially determined contributions rather than allowing rates to drop, ensuring a steady flow of funds to cover the system's financial obligations. These changes directly affect the state, school districts, and public school employees who contribute to the retirement fund.