Oklahoma OSOW permits

Updated: Sep 2

Permits valid for three days. Must have a permit prior to entering the state.

Oklahoma permitting system: https://permitmanager.okladot.state.ok.us/okiepros/login/LoginMain!input.action

Contact phone number: 1-405-425-7012


One-half hour before sunrise to one-half hour after sunset seven days a week. Overweight only can have continuous travel, but must be requested when ordering permits.


Oversize load movements are not allowed on the Interstate system through Cleveland, Oklahoma, and Tulsa counties between 7:00 a.m. to 9:00 a.m. and 3:30 p.m. – 6:30 p.m. Monday through Friday (does not apply to O/W only). No permit travel allowed on major holidays (double-check with Sammons Permit Office).


Loads up to 9'6" wide are permitted without requiring a Pike Pass. Loads over 9'6" wide up to 11'6" wide (and up to 13'6" wide on Cherokee Turnpike only) need a Pike Pass reference number for permitting. The maximum weight for the turnpikes is 108,000 pounds. Weight is paid for on the state permit; the turnpike does not charge extra above the usual per axle charge.


Width: 8'6" (8' on any highway having a surface width of fewer than 20 feet)

Height: 13'6"

Length: 59'6" semitrailer and load is legal on Oklahoma's "U.S. Defense Highway System" which includes all Interstate routes and some U.S. Highways; 53' semitrailer and load on other routes.

Weight: 80,000 Gross on Interstate, 90,000 on non-Interstate routes (with legal tandem and tridem weights) Single – 20,000 Tandem – 34,000 Tridem – 42,000


Width: 16'

Height: Depends on routes

Length: No set maximum

Weight: Single – 20,000 Tandem – 40,000 (with at least 4'3" axle spacing) or 39,000 (less than 4'3" spacing) Tridem – 60,000 (57,000 with 4'2" axle spacings) Quad – 65,000 Steer Axle – 15,000 (With the minimum spacing of 15' steer to first drive axle) For an overweight permit, your registration must be prorated for 90,000 for Oklahoma, or for at least the amount of gross weight you need permitted if less than 90,000 pounds. According to the Oklahoma Permit Manual, an approved scale weight ticket or a certification of gross weight from the shipper should be attached to an overweight permit. Loads exceeding these dimensions will take extra time for approval.


Width: Over 12' on all highways – 1 escort, over 14' on two-lane highways or over 16' on multi-lane highways – 2 escorts.

Height: Over 15'8" – 2 escorts on all highways; and "All public utilities and railroads along the route must be contacted in advance of the move by the permittee."

Length: Over 80' on 2-lane highways – 1 escort, over 100' on 2-lane highways – 2 escorts


Dozers with blades that exceed 12 feet in width shall not be permitted to travel more than 50 miles from the base of operation. When exceeding the 50-mile limit, the blade is to be removed. Agricultural equipment is no longer exempt from needing permits in Oklahoma.


"Oversize Load" signs are required on the front of the tractor and rear of the load or trailer (whichever extends the farthest) on all oversized loads moving under permit. They are also required on two-lane highways when the load exceeds 59-1/2 feet in length. Flags are required at the widest point of any oversize load. Rear overhang of 4 feet or more must be flagged.

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