AN ACT TO AMEND SECTIONS 25-11-103, 25-11-109, 25-11-111, 25-11-112, 25-11-114, 25-11-115, 25-11-117, 25-11-123 AND 25-11-147, MISSISSIPPI CODE OF 1972, TO PROVIDE THAT FIRST RESPONDERS WHO BECOME MEMBERS OF THE PUBLIC EMPLOYEES' RETIREMENT SYSTEM ON OR AFTER MARCH 1, 2026, SHALL BE INCLUDED IN TIER 4 MEMBERSHIP IN THE SYSTEM; TO DEFINE FIRST RESPONDERS AS LAW ENFORCEMENT OFFICERS, FIREFIGHTERS AND EMERGENCY MEDICAL SERVICE PROVIDERS; AND FOR RELATED PURPOSES.