---
kind: "section"
citation: "49 U.S.C. § 31114"
title: "49"
title_heading: "Transportation"
number: "31114"
heading: "Access to the Interstate System"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/49/31114"
units:
  - "Subtitle VI — Motor Vehicle and Driver Programs"
  - "Part B — Commercial"
  - "Chapter 311 — Commercial Motor Vehicle Safety"
  - "Subchapter II — Length and Width Limitations"
---

# §31114. Access to the Interstate System

- (a) **Prohibition on Denying Access.—** A [State](/usc/49/31101.md?p=4) may not enact or enforce a law denying to a [commercial motor vehicle](/usc/49/31101.md?p=1) 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)](/usc/49/31111.md?p=f) or [31113(e)](/usc/49/31113.md?p=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](/usc/49/32901.md?p=a-10), 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)](/usc/49/31111.md?p=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](/usc/49/31111.md?p=c).
- (b) **Exception.—** This section does not prevent a [State](/usc/49/31101.md?p=4) 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](/usc/49/31111.md?p=c).

## Source credit

(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 999; Pub. L. 114–94, div. A, title V, § 5523(c)(2), Dec. 4, 2015, 129 Stat. 1560.)

## Notes

| Historical and Revision Notes |  |  |
| --- | --- | --- |
| Revised<br>Section | Source (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 Amendment

Amendment 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.