42 U.S.C. § 13263a — Alternative compliance

(a) Application for waiver: Any covered person subject to section 13251 of this title, and any State subject to section 13257(o) of this title, may ask the Secretary for a waiver from the requirements that would otherwise apply under section 13251 or 13257(o). (b) Grant of waiver: The Secretary must grant the waiver if the State or covered person shows that its fleet will: (1) cut its annual petroleum fuel use by an amount equal to either (A) the reduction that would happen if it fully complied with the fuel-use requirements of section 13251 of this title, or (B) for an entity covered under section 13257(o) of this title, the reduction that would happen if every alternative-fuel vehicle it has been credited with under section 13258 of this title used alternative fuel 100 percent of the time; and (2) meet all the vehicle emission standards the EPA Administrator has set under the Clean Air Act. (c) Reporting requirement: By December 31 of a given model year, any State or covered person that got a waiver for the previous model year must file an annual report that (1) certifies exactly how much it reduced petroleum fuel use during that previous model year, and (2) projects how much it expects to reduce petroleum fuel use during the following model year. (d) Revocation of waiver: If a State or covered person with a waiver stops meeting these requirements, the Secretary must revoke the waiver, and may also impose a penalty under section 13262 of this title.