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
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.
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Transportation — Source: USLM XML via OLRC
Legislative History
Reference
Citation
49 U.S.C. § 31114
Title 49 — Transportation
Last Updated
Apr 6, 2026
Release point: 119-73