Title 49TransportationRelease 119-73

§31114 Access to the Interstate System

Title 49 › Subtitle SUBTITLE VI— - MOTOR VEHICLE AND DRIVER PROGRAMS › Part PART B— - COMMERCIAL › Chapter CHAPTER 311— - COMMERCIAL MOTOR VEHICLE SAFETY › Subchapter SUBCHAPTER II— - LENGTH AND WIDTH LIMITATIONS › § 31114

Last updated Apr 6, 2026|Official source

Summary

States must not pass or enforce laws that block commercial motor vehicles from reasonable access between the Dwight D. Eisenhower System of Interstate and Defense Highways (except segments exempt under 31111(f) or 31113(e)) and other Federal‑aid Primary System highways the Secretary of Transportation designates. They also must allow reasonable access between those highways and terminals, places for food, fuel, repairs, rest, and loading/unloading points for certain carriers (including household‑goods movers, passenger carriers, towaway trailer transporters (see 31111(a)), and tractor‑semitrailer combinations with semitrailers 28.5 feet or shorter (see 31111(c))). States and local governments may still impose reasonable safety restrictions on those tractor‑semitrailer combinations with semitrailers 28.5 feet or shorter.

Full Legal Text

Title 49, §31114

Transportation — Source: USLM XML via OLRC

(a)A State may not enact or enforce a law denying to a commercial motor vehicle subject to this subchapter or subchapter I of this chapter reasonable access between—
(1)the Dwight D. Eisenhower System of Interstate and Defense Highways (except a segment exempted under section 31111(f) or 31113(e) of this title) and other qualifying Federal-aid Primary System highways designated by the Secretary of Transportation; and
(2)terminals, facilities for food, fuel, repairs, and rest, and points of loading and unloading for household goods carriers, motor carriers of passengers, any towaway trailer transporter combination (as defined in section 31111(a)), or any truck tractor-semitrailer combination in which the semitrailer has a length of not more than 28.5 feet and that generally operates as part of a vehicle combination described in section 31111(c) of this title.
(b)This section does not prevent a State or local government from imposing reasonable restrictions, based on safety considerations, on a truck tractor-semitrailer combination in which the semitrailer has a length of not more than 28.5 feet and that generally operates as part of a vehicle combination described in section 31111(c) of this title.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Revised SectionSource (U.S. Code)Source (Statutes at Large) 31114(a)49 App.:2312(a).Jan. 6, 1983, Pub. L. 97–424, § 412, 96 Stat. 2160; Oct. 30, 1984, Pub. L. 98–554, §§ 104(c), 106, 98 Stat. 2831, 2832; Dec. 18, 1991, Pub. L. 102–240, § 4006(b)(2), 105 Stat. 2151. 31114(b)49 App.:2312(b). In subsection (a), the words “Dwight D. Eisenhower System of Interstate and Defense Highways” are substituted for “Interstate and Defense Highway System” for consistency in the revised chapter.

Editorial Notes

Amendments

2015—Subsec. (a)(2). Pub. L. 114–94 inserted “any towaway trailer transporter combination (as defined in section 31111(a)),” after “passengers,”.

Statutory Notes and Related Subsidiaries

Effective Date

of 2015 AmendmentAmendment by Pub. L. 114–94 effective Oct. 1, 2015, see section 1003 of Pub. L. 114–94, set out as a note under section 5313 of Title 5, Government Organization and Employees.

Reference

Citations & Metadata

Citation

49 U.S.C. § 31114

Title 49Transportation

Last Updated

Apr 6, 2026

Release point: 119-73