Title 49, TransportationRelease 119-110
§32919 Preemption
Title 49 › SUBTITLE VI — MOTOR VEHICLE AND DRIVER PROGRAMS › PART C — INFORMATION, STANDARDS, AND REQUIREMENTS › CHAPTER 329 — AUTOMOBILE FUEL ECONOMY › § 32919
Summary
Federal fuel-economy standards take priority over state or local rules for cars covered by them. For the rule under section 32908 about showing fuel economy and operating costs, states may only use a rule that is exactly the same. States may set rules for cars they buy.
Full Legal Text
Title 49, §32919
Transportation, Source: USLM XML via OLRC
(a)General.—
When an average fuel economy standard prescribed under this chapter is in effect, a State or a political subdivision of a State may not adopt or enforce a law or regulation related to fuel economy standards or average fuel economy standards for automobiles covered by an average fuel economy standard under this chapter.
(b)Requirements Must Be Identical.—
When a requirement under section 32908 of this title is in effect, a State or a political subdivision of a State may adopt or enforce a law or regulation on disclosure of fuel economy or fuel operating costs for an automobile covered by section 32908 only if the law or regulation is identical to that requirement.
(c)State and Political Subdivision Automobiles.—
A State or a political subdivision of a State may prescribe requirements for fuel economy for automobiles obtained for its own use.
Legislative History
Notes & Related Subsidiaries
Historical and Revision Notes
Revised SectionSource (U.S. Code)Source (Statutes at Large) 3291815:2009.Oct. 20, 1972, Pub. L. 92–513, 86 Stat. 947, § 509; added Dec. 22, 1975, Pub. L. 94–163, § 301, 89 Stat. 914. In subsection (a), the word “prescribed” is substituted for “established” for consistency.
Editorial Notes
Amendments
1994—Pub. L. 103–429 renumbered section 32918 of this title as this section.
Reference
Citations & Metadata
Citation
49 U.S.C. § 32919
Title 49, Transportation
Last Updated
Sep 22, 2026
Release point: 119-110