Okla. Stat. tit. 47, § 14-103 – Width, Height, and Length of Vehicle and Load

Except as otherwise provided for by this chapter:

A. No vehicle, with or without load, shall have a total outside width in excess of one hundred and two (102) inches excluding both tire bulge and approved safety devices when operated on any road or highway in this state. The provisions of this subsection shall not apply to any person engaged in the hauling of round baled hay with a total outside width of eleven (11) feet or less when the hay is owned by such person and is being hauled for any purpose other than resale.
B. No vehicle, with or without load, shall exceed a height of thirteen and one-half (13 1/2) feet.
C.
1. 1. No single truck, with or without load, shall have an overall length, inclusive of front and rear bumpers, in excess of forty-five (45) feet.
2. 2. No single bus, with or without load, shall have an overall length, inclusive of front and rear bumpers, in excess of forty-five (45) feet.
3. 3.
  1. a. On the National Network of highways which includes the National System of Interstate and Defense Highways and four-lane divided Federal Aid Primary System Highways, no semitrailer operating in a truck tractor/semitrailer combination shall have a length greater than fifty-three (53) feet, except as provided for in subsection C of Section 47-14-118 of this title which shall apply to semitrailers exceeding fifty-three (53) feet but not exceeding fifty-nine (59) feet six (6) inches. On the National System of Interstate and Defense Highways and four-lane divided Federal Aid Primary System Highways, no semitrailer or trailer operating in a truck-tractor/semitrailer and trailer combination shall have
    a length greater than fifty-three (53) feet.
  2. b. On roads and highways not a part of the National System of Interstate and Defense Highways or four-lane divided Federal Aid Primary System Highways, no semitrailer operating in a truck-tractor/semitrailer combination shall have a length greater than fifty-three (53) feet and no semitrailer or trailer operating in a truck-tractor/semitrailer and trailer combination shall have a length greater than twenty-nine (29) feet. Except as provided for in subsection D of Section 47-14-118 of this title, no other combination of vehicles shall have an overall length, inclusive of front and rear bumpers, in excess of seventy (70) feet on all roads and highways. For the purposes of this paragraph, oil field rig-up trucks shall be considered to be truck-tractors, when towing a trailer or semitrailer.
4. 4. No combination of vehicles shall consist of more than two units, except:
  1. a. one truck and semitrailer or truck-tractor/semitrailer combination may tow one complete trailer or semitrailer; or
  2. b. vans, suburbans, blazers or other similar types of vehicles and self-propelled recreational vehicles with a three-quarter (3/4) ton or more rated capacity, may tow a semitrailer and one complete trailer or semitrailer for recreational purposes only, provided the overall length, inclusive of the front and rear bumpers, does not exceed sixty-five (65) feet.
5. 5. Poles and gas lines used to maintain public utility services, not to include new construction, may be moved during daylight hours, and during nighttime hours only in an emergency, subject to traffic and road restrictions promulgated by the Commissioner of Public Safety, when the overall length does not exceed eighty (80) feet. When this length is exceeded, these loads are subject to the requirements of Section 47-14-118 of this title.
6. 6. For the purposes of subparagraphs 1, 3, and 4 of this paragraph, the length of unitized equipment, which is defined to be equipment so constructed and attached to a rubber-tired vehicle that the vehicle and load become a unit and are for all practical purposes inseparable, shall be the length of the vehicle itself, and shall not include any protrusion of the equipment load so constructed or attached. Said equipment shall not protrude for a distance greater than two-thirds (2/3) of the wheel base of said vehicle, shall not impair the driver's vision, and if less than seven (7) feet above the roadway, shall be safely marked, flagged or illuminated. Any such protruding structure shall be securely held in place to prevent dropping or swaying. Unitized equipment shall carry such safety equipment as shall be determined to be necessary for the safety, health, and welfare of the driving public by the Commissioner of Public Safety.
7. 7. For the purposes of subparagraphs 1, 3, and 4 of this paragraph, a truck-tractor, when being towed by another vehicle with the wheels of its steering axle raised off the roadway, shall be considered to be a semitrailer as defined in Section 47-1-162 of this title.
8. 8. The provisions of subparagraphs 1 and 3 of this paragraph shall not apply to any contractor or subcontractor, or his agents or employees, while engaged in transporting material to the site of a project being constructed by, for, or on behalf of this state or any city, town, county, or subdivision of this state.
9. 9. Special mobilized machinery, as defined in Section 1102 of this title, which exceeds the size provisions of this section shall only use the highways of the State of Oklahoma by special permit issued by the Commissioner of Public Safety or his authorized representative. Such special permit shall be:
  1. a. a single-trip permit issued under the provisions of Section 47-14-116 of this title, or
  2. b. a special annual oversize permit issued for one calendar year period upon payment of a fee of Ten Dollars ($10.00) plus any amount as provided by subsection D of Section 1129 of this title.

Laws 1961, HB 556, p. 413, § 14-103, eff. September 1, 1961; Amended by Laws 1963, SB 341, c. 124, § 1, emerg. eff. June 3, 1963; Amended by Laws 1965, SB 190, c. 80, § 1, emerg. eff. May 3, 1965; Amended by Laws 1971, SB 269, c. 199, § 1, emerg. eff. June 8, 1971; Amended by Laws 1972, HB 1639, c. 52, § 2, emerg. eff. March 15, 1972; Amended by Laws 1977, SB 180, c. 55, § 2, emerg. eff. May 16, 1977; Amended by Laws 1983, HB 1189, c. 181, § 1, emerg. eff. June 9, 1983; Amended by Laws 1984, HB 1666, c. 64, § 1, eff. November 1, 1984; Amended by Laws 1985, HB 1269, c. 290, § 2, emerg. eff. July 1, 1985; Amended by Laws 1986, HB 1678, c. 47, § 1, eff. November 1, 1986; Amended by Laws 1990, SB 691, c. 315, § 3, emerg. eff. July 1, 1990; Amended by Laws 1991, HB 1064, c. 156, § 2, emerg. eff. May 6, 1991; Amended by Laws 1993, SB 187, c. 252, § 2, emerg. eff. May 26, 1993; Amended by Laws 1995, HB 1960, c. 27, § 3, emerg. eff. July 1, 1995.