this heading in this Act, the Secretary shall calculate the amounts of appropriated funds described in subsections (a) and (b) of section 658O of such Act ( 42 U.S.C. 9858m ) by excluding funds made available under this heading in this Act. Children And Families Services Programs For an additional amount for Children and Families Services Programs , $3,700,000,000, to prevent, prepare for, and respond to coronavirus, which shall be used as follows: (1) $1,700,000,000 for making payments under the Head Start Act, including for Federal administrative expenses, and allocated in an amount that bears the same ratio to such portion as the number of enrolled children served by the agency involved bears to the number of enrolled children by all Head Start agencies: Provided , That none of the funds made available in this paragraph shall be included in the calculation of the base grant in subsequent fiscal years, as such term is defined in sections 640(a)(7)(A), 641A(h)(1)(B), or 645(d)(3) of the Head Start Act: Provided further , That funds made available in this paragraph are not subject to the allocation requirements of section 640(a) of the Head Start Act