Retirement; public school employees; naming a second spouse as beneficiary if first spouse predeceases him or her and naming of spouse as beneficiary if marriage occurs or is recognized after retirement allowance effective date; allow, and revise the determination of a beneficiary's actuarial equivalent retirement allowance. Amends secs. 85, 91 & 108 of
1980 PA 300 (MCL
38.1385 et seq.).