Commencing October 1, 2000, any pensioner or annuitant who retired prior to October 1, 2000, from a city, town, county, or public or quasi-public organization of the state before the city, town, county, or public or quasi-public organization of the state became a member of the Employees' Retirement System and is receiving a monthly benefit not administered by the Employees' Retirement System shall receive a twenty-five dollar ($25) per month increase provided the city, town, county, or public or quasi-public organization of the state elects to fund the increase.
Ala. Code § 36-27-157 (1975)