Modifies the retirement allowance multiplier for certain members of the Public School Retirement System

SB 1258 changes the calculation method for retirement benefits for specific public school employees enrolled in the Public School Retirement System. It modifies the "multiplier" used to determine pension amounts based on years of service, directly affecting current and future members who qualify under the bill's provisions. The key provision adjusts how retirement allowances are computed, altering the formula that converts service years into a percentage of final salary. This is a technical adjustment to the retirement system's funding mechanism, not a new benefit or policy.