Subject to the availability of appropriations, not later than 180 days after November 15, 2021, the Administrator shall establish an efficiency grant program (referred to in this section as the "efficiency grant program") under which the Administrator shall award grants to eligible entities for the replacement or repair of equipment that improves water or energy efficiency of small publicly owned treatment works, as identified in an efficiency audit.
The Administrator may award a grant under the efficiency grant program to-
Not later than 2 years after the date on which the Administrator establishes the efficiency grant program, and every 2 years thereafter, the Administrator shall submit to Congress a report describing-
Of the amounts made available for grants under this section, to the extent that there are sufficient applications, not less than 15 percent shall be used for grants to publicly owned treatment works that serve fewer than 3,300 people.
Of the amounts made available for grants under this section, not more than 2 percent may be used to pay the administrative costs of the Administrator.
33 U.S.C. § 1302c