; and (B) twice the quantity carried onboard each required truck available in the fire station for the eligible airport. (2) The disposal of perfluoroalkyl or polyfluoroalkyl products, including fluorinated aqueous film-forming agents, to the extent such disposal is necessary to facilitate the transition to such approved fluorine-free firefighting agent, including aqueous film-forming agents currently in firefighting equipment and vehicles and any wastewater generated during the cleaning of firefighting equipment and vehicles. (3) The cleaning or disposal of existing equipment or components thereof, to the extent such cleaning or disposal is necessary to facilitate the transition to such approved fluorine-free firefighting agent. (4) The acquisition of any equipment, or components thereof, necessary to facilitate the transition to such approved fluorine-free firefighting agent. (5) The replacement of any aircraft rescue and firefighting equipment determined necessary to be replaced by the Secretary. (b) Distribution of funds (1) Grants to replace aircraft rescue and firefighting vehicles (A) In general Of the amounts made available to carry out the PFAS replacement program, the Secretary shall reserve up to $30,000,000 to make grants to each eligible airport that is designated under part 139 as an Index A airport and does not have existing capabilities to produce fluorine-free firefighting foam for the replacement of aircraft rescue and firefighting vehicles. (B) Amount The maximum amount of a grant made under subparagraph (A) may not exceed $2,000,000. (2) Remaining amounts (A) Determination of need With respect to the amount of firefighting foam concentrate required for foam production commensurate with applicable aircraft rescue and firefighting equipment required in accordance with the most recent FAA-approved Airport Certification Manual, the Secretary shall determine— (i) for each eligible airport, the total amount of such concentrate required for all of the federally required aircraft rescue and