(a) Effective July 1, 2022, the minimum monthly pay for each service employee shall be as follows:
(1) For school year 2022-2023, and continuing thereafter, the minimum monthly pay for each service employee whose employment is for a period of more than three and one-half hours a day shall be at least the amounts indicated in the State Minimum Pay Scale Pay Grade Schedule set forth in this subdivision and the minimum monthly pay for each service employee whose employment is for a period of three and one-half hours or less a day shall be at least one-half the amount indicated in the State Minimum Pay Scale Pay Grade Schedule set forth in this subdivision.