4. Moneys of the fund shall be made available for financing any of the following types of capital projects within the counties comprising the metropolitan commuter transportation district, except those counties comprising the city of New York, but only to the extent that such projects are on an adopted transportation plan and approved by a designated transportation coordinating committee, if one exists, or by the metropolitan planning organization as created pursuant to section fifteen-a of the transportation law if no designated transportation coordinating committee exists: capacity and infrastructure improvements to state, county, town, city, village roads, highways, parkways and bridges; or state, county, town, city or village mass transportation projects; provided, however, that in Nassau and Suffolk counties such moneys shall be available only for capacity improvements to state roads, highways, parkways and bridges. The amount of state funds historically appropriated statewide, other than bond funds, for transportation capital purposes from other sources shall not be reduced because of the availability of such moneys made available pursuant to this chapter, nor shall such moneys be used to match federal aid. Prior to the allocation of state advance funds appropriated pursuant to this section, the municipality responsible for the project shall certify to the commissioner of transportation that the amount of funds appropriated for transportation capital purposes by that municipality shall not be reduced because of the availability of such state advance funds, and that such moneys shall not be used to match federal aid. The designated transportation coordinating committee, if one exists, or the metropolitan planning organization if no designated transportation coordinating committee exists, shall notify the municipalities within its jurisdiction of which projects it has approved.