((a)) ** Authorization of appropriations**

((1)) ** Grants** There is authorized to be appropriated to the Secretary for the provision of grants under the program $2,000,000,000 for each of fiscal years 2008 through 2012.

((2)) ** Administrative costs** There are authorized to be appropriated to the Secretary for administrative expenses of the program—

((A)) $20,000,000 for each of fiscal years 2008 and 2009;

((B)) $25,000,000 for each of fiscal years 2010 and 2011; and

((C)) $30,000,000 for fiscal year 2012.

((b)) ** Maintenance of funding** The funding provided under this section shall supplement (and not supplant) other Federal funding provided under—

((1)) a State energy conservation plan established under part D of title III of the Energy Policy and Conservation Act ( et seq.); or

((2)) the Weatherization Assistance Program for Low-Income Persons established under part A of title IV of the Energy Conservation and Production Act ( et seq.).