Notwithstanding any other provision of law or regulation, if local revenues, consisting of the proceeds of property taxes and student fees, for community colleges exceed the estimates included in the annual Budget Act for these revenue sources, an equivalent amount of general purpose funds appropriated for local assistance to the Board of Governors of the California Community Colleges in Schedule (a) of Item 6870-101-0001, or a successor item appropriating funds for local assistance to the board of governors, of Section 2.00 of that Budget Act shall only be allocated to community college districts for one-time purposes. These allocations shall be based on the statewide ratio of actual FTES served for the preceding fiscal year. This amount shall be reduced from the apportionment base of districts in subsequent years.