42 U.S.C. § 7582 — Requirements applicable to clean-fuel vehicles

(a) Promulgation of standards. Within 24 months of November 15, 1990, the Administrator had to issue regulations under this part setting clean-fuel vehicle standards for the clean-fuel vehicles this part covers. (b) Other requirements. Clean-fuel vehicles up to 8,500 lbs. GVWR must meet all the same motor vehicle requirements as conventional gasoline vehicles of the same category and model year (such as rules on on-board diagnostics and evaporative emissions) — except as section 7584 provides for administration and enforcement, and except where a requirement conflicts with this part. Clean-fuel vehicles of 8,500 lbs. GVWR or more must meet all the same requirements as conventional gasoline or diesel vehicles of the same category and model year — with the same two exceptions. (c) In-use useful life and testing. (1) For light-duty vehicles and light-duty trucks up to 6,000 lbs. GVWR, the "useful life" for checking in-use compliance with section 7583 standards is: (A) 5 years or 50,000 miles, whichever comes first, for standards certified at 50,000 miles; and (B) 10 years or 100,000 miles, whichever comes first, for standards certified at 100,000 miles — except in-use testing stops after 7 years or 75,000 miles, whichever comes first. (2) For light-duty trucks over 6,000 lbs. GVWR, the useful life is: (A) 5 years or 50,000 miles, whichever comes first, for standards certified at 50,000 miles; and (B) 11 years or 120,000 miles, whichever comes first, for standards certified at 120,000 miles — except in-use testing stops after 7 years or 90,000 miles, whichever comes first.