(

a) Notwithstanding any other law, a supplemental appropriation shall be made from the General Fund for the support of school districts, as defined in

Section 41302.5, in each fiscal year for the purposes set forth in subdivision (c). The amount of that supplemental appropriation shall be equal to the sum of the amount allocated to school districts pursuant to this

section in the prior fiscal year and percent of the amount, if any, allocated to school districts in the prior fiscal year pursuant to

Section 8.5 of

Article XVI of the California Constitution. That amount shall be adjusted annually for changes in enrollment, and for the change in the cost of living pursuant to paragraph (1) of subdivision (

e) of

Section of

Article XIII B of the California Constitution. (

b) The funds appropriated for the purposes of subdivision (

a) shall be allocated to each school district in an equal amount per unit of enrollment, in accordance with the allocation procedure set forth in subdivision (

c) of

Section 8.5 of

Article XVI of the California Constitution. (

c) The amount allocated to each school district pursuant to this

section shall be used only for the reduction of class size in any grade level or subject area. That class size reduction shall occur in any manner determined by the governing board of the school district. Not later than days following each fiscal year in which a school district receives funding pursuant to this section, the governing board of the school district shall certify in writing to the Superintendent that all expenditures of that funding were in compliance with this subdivision.