---identifier: "/us/cfr/t23/s658.15"source: "ecfr"legal_status: "authoritative_unofficial"title: "23 CFR § 658.15 - Width."title_number: 23title_name: "Highways"section_number: "658.15"section_name: "Width."chapter_name: "FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"subchapter_number: "G"subchapter_name: "ENGINEERING AND TRAFFIC OPERATIONS"part_number: "658"part_name: "TRUCK SIZE AND WEIGHT, ROUTE DESIGNATIONS—LENGTH, WIDTH AND WEIGHT LIMITATIONS"positive_law: falsecurrency: "2026-04-05"last_updated: "2026-04-05"format_version: "1.1.0"generator: "[email protected]"authority: "23 U.S.C. 127 and 315; 49 U.S.C. 31111, 31112, and 31114; sec. 347, Pub. L. 108-7, 117 Stat. 419; sec. 756, Pub. L. 109-58, 119 Stat. 829; sec. 1309, Pub. L. 109-59, 119 Stat. 1219; sec. 115, Pub. L. 109-115, 119 Stat. 2408; sec. 5516, Pub. L. 114-94, 129 Stat. 1312, 1557; 49 CFR 1.81(a)(3)."regulatory_source: "49 FR 23315, June 5, 1984, unless otherwise noted."cfr_part: "658"---
Identifier
/us/cfr/t23/s658.15
Currency
2026-04-05
Positive Law
No
Updated
2026-04-05
Chapter
Federal Highway Administration, Department of Transportation
Authority
23 U.S.C. 127 and 315; 49 U.S.C. 31111, 31112, and 31114; sec. 347, Pub. L. 108-7, 117 Stat. 419; sec. 756, Pub. L. 109-58, 119 Stat. 829; sec. 1309, Pub. L. 109-59, 119 Stat. 1219; sec. 115, Pub. L. ... 23 U.S.C. 127 and 315; 49 U.S.C. 31111, 31112, and 31114; sec. 347, Pub. L. 108-7, 117 Stat. 419; sec. 756, Pub. L. 109-58, 119 Stat. 829; sec. 1309, Pub. L. 109-59, 119 Stat. 1219; sec. 115, Pub. L. 109-115, 119 Stat. 2408; sec. 5516, Pub. L. 114-94, 129 Stat. 1312, 1557; 49 CFR 1.81(a)(3).
# 658.15 Width.(a) No State shall impose a width limitation of more or less than 102 inches, or its approximate metric equivalent, 2.6 meters (102.36 inches) on a vehicle operating on the National Network, except for the State of Hawaii, which is allowed to keep the State's 108-inch width maximum by virtue of section 416(a) of the STAA.(b) The provisions of paragraph (a) of this section do not apply to special mobile equipment as defined in § 658.5.(c) Notwithstanding the provisions of this section or any other provision of law, a State may grant special use permits to motor vehicles, including manufactured housing, that exceed 102 inches in width.[49 FR 23315, June 5, 1984, as amended at 59 FR 30419, June 13, 1994; 67 FR 15110, Mar. 29, 2002; 72 FR 7748, Feb. 20, 2007]