49 USC § 32919 - Preemption

---
identifier: "/us/usc/t49/s32919"
source: "usc"
legal_status: "official_legal_evidence"
title: "49 USC § 32919 - Preemption"
title_number: 49
title_name: "TRANSPORTATION"
section_number: "32919"
section_name: "Preemption"
chapter_number: 329
chapter_name: "AUTOMOBILE FUEL ECONOMY"
part_number: "C"
part_name: "INFORMATION, STANDARDS, AND REQUIREMENTS"
positive_law: true
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1075, § 32918; renumbered § 32919, Pub. L. 103–429, § 6(43)(A), Oct. 31, 1994, 108 Stat. 4382.)"
---


# § 32919. Preemption

**(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.

---

**Source Credit**: (Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1075, § 32918; renumbered § 32919, Pub. L. 103–429, § 6(43)(A), Oct. 31, 1994, 108 Stat. 4382.)

| RevisedSection | Source (U.S. Code) | Source (Statutes at Large) |
| --- | --- | --- |
| 32918 | 15:2009. | 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— renumbered  as this section.