Oklahoma Oversize & Overweight Permit Rules
What a load can be in Oklahoma without a permit, where the permit and escort tiers start on 2-lane roads and multi-lane roads, when it can move, and who to call. Every figure is the JaloPermit Atlas entry for Oklahoma, shown as the app shows it.
Rules as of Jul 31, 2026 · Links checked Jul 13, 2026
Read this before you trust a number. Rules change. The issued permit, posted signs and the state permit office always win over this page. JaloPermit is a reading aid, not a permit-filing service. Guests get 3 free decodes a day with no account and no card, logged-in users get 10 a day, and extra decodes are $3.50 each with no subscription.
What moves in Oklahoma without a permit
Legal limits are the dimensions and gross weight a vehicle may run at without an oversize or overweight permit. Oklahoma publishes its length limit as semitrailer, so compare it against that measurement on your permit, not the overall rig.
Where the permit and escort tiers start
| Dimension | Legal without permit | Permit tier starts | First escort on 2-lane roads | First escort on multi-lane roads |
|---|---|---|---|---|
| Width | 8'6" | 8'7" | 12'1" · Front escort | 12'1" · Rear escort |
| Height | 14'0" | 13'7" | 15'9" · Front + Rear + High pole | 15'9" · Front + Rear + High pole |
| Length | 53'0"semitrailer | 59'7" | 80'1" · Front escort | No escort tier (permit only) |
| Weight | 80,000 lbs | Check the state permit office. | — | — |
"Permit tier starts" is the lowest size in the Atlas ladder that needs a permit. "First escort" is the lowest size that adds a private or police escort on that road class; the full ladder with each tier's rule and source is below.
Oklahoma escort ladder, tier by tier
Open a tier to read the rule behind it, quoted with its source. Amber tiers add a police escort or a superload review; grey tiers are permit-only with conditions.
On 2-lane roads
Escorts begin at 12'1" wide
Width
Permit required8'7" – 12'
Permit required over 8'6"; no escort
Front escort12'1" – 14'
Front escort on two-lane and super two-lane over 12'
Front + Rear14'1" – 16'
Front and rear on two-lane and super two-lane over 14'
Front + Rear16'1"+
Front and rear required on all roads and highways over 16' Above 20 ft, this row's escorts are the minimum; the permit sets any more.
Height
Permit required13'7" – 15'8"
Permit required over 13'6" on county roads, over 14' on US and state highways
Front + Rear + High pole15'9"+
Front and rear at 15'9" or more; lead carries height pole; utilities and railroads contacted in advance. Above 20 ft, this row's escorts are the minimum; the permit sets any more.
Length
Permit required59'7" – 80'
Permit required; no escort at or below 80' overall combination length
Front escort80'1" – 100'
Front escort on two-lane over 80' overall; super two-lane too if not a tractor-semitrailer
Front + Rear100'1"+
Front and rear on two-lane and super two-lane over 100' overall. Above 200 ft, this row's escorts are the minimum; the permit sets any more.
On multi-lane roads
Escorts begin at 12'1" wide
Width
Permit required8'7" – 12'
Permit required over 8'6"; no escort
Rear escort12'1" – 14'
Rear escort on multi-lane highways over 12'
Rear escort14'1" – 16'
Rear escort only on multi-lane; two-lane needs front and rear
Front + Rear16'1"+
Front and rear on all roads over 16'; not eligible for Interstate routing. Above 20 ft, this row's escorts are the minimum; the permit sets any more.
Height
Permit required14'1" – 15'8"
Permit required over 14' on interstate, turnpike, US and state highways
Front + Rear + High pole15'9"+
Front and rear at 15'9" or more; lead carries height pole; utilities and railroads contacted in advance. Above 20 ft, this row's escorts are the minimum; the permit sets any more.
Length
Permit required59'7" – 200'
Permit required; no length escort on multi-lane highways at any length
When a permitted load can move
- Standard hours
Oversize loads move during daylight hours only: one-half hour before sunrise to one-half hour after sunset. Loads permitted solely for overweight may travel continuously, day and night.
- Night travel
Not permitted for oversize loads; daylight hours only. Loads permitted solely for overweight are exempt and may move continuously. ODOT's Executive Director may endorse an individual oversize permit for night travel for good cause.
- Weekend travel
Saturday and Sunday travel permitted; state law and ODOT rules set no general weekend restriction. Daylight-hours limits and the weekday metro interstate curfews still apply. Houses and buildings moved under permit may not move on Saturday or Sunday.
- Holiday restrictions
No permitted movement on New Year's Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving Day or Christmas Day. Movement is expressly allowed on Martin Luther King Jr. Day, Presidents Day and Veterans Day.
- Urban restrictions
Oversize loads may not move on interstate highways in Oklahoma, Tulsa or Cleveland counties from 7:00-9:00 a.m. or 3:30-6:30 p.m., Monday through Friday. The 2-mile section of I-35 between SH-9 East (Exit 108) and SH-9 West (Exit 106) is exempt.
Signage Oklahoma expects
- Oversize load sign
Yellow sign with black lettering, at least 5 feet long by 14 inches high, letters at least 8 inches high with a 1-1/8 inch brush stroke. Required on the front of the towing vehicle and the rear of whichever unit extends farthest. Not to be displayed on a legal load.
- Flags
Red or fluorescent orange flags at least 18 by 18 inches on all overwidth and overlength permitted loads, at the four corners and any extremity. Rear overhang of 4 feet or more must be flagged: one flag if the projection is 2 feet wide or less, two if wider.
- Beacons
Amber warning lights are required on escort vehicles: one AAMVA-approved rotating or flashing amber beacon or an amber light bar mounted on the roof. Blue, red or white rotating lights are not authorized. Lights must not be displayed unless actually escorting.
Oklahoma permit office
The permit office is the authority on every number on this page. Call it, or open the official site, before you rely on a threshold for a load that is close to a line.
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What are the legal limits in Oklahoma without an oversize or overweight permit?
In Oklahoma, the legal limits without an oversize or overweight permit are 8'6" wide, 14'0" high, 53'0" long (semitrailer) and 80,000 lbs gross. Legal overhang is 3'0" front and 4'0" rear. Anything over those figures needs a permit from the Oklahoma permit office before it moves.
When does an oversize load need an escort or pilot car in Oklahoma?
On 2-lane roads in Oklahoma, escorts begin at 12'1" wide. On multi-lane roads, escorts begin at 12'1" wide. The first escort tier is "Front escort" at 12'1" – 14' wide. Every tier on this page quotes its rule and source.
Can oversize loads travel at night, on weekends or on holidays in Oklahoma?
Night travel: Not permitted for oversize loads; daylight hours only. Loads permitted solely for overweight are exempt and may move continuously. ODOT's Executive Director may endorse an individual oversize permit for night travel for good cause. Weekend travel: Saturday and Sunday travel permitted; state law and ODOT rules set no general weekend restriction. Daylight-hours limits and the weekday metro interstate curfews still apply. Houses and buildings moved under permit may not move on Saturday or Sunday. Holidays: No permitted movement on New Year's Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving Day or Christmas Day. Movement is expressly allowed on Martin Luther King Jr. Day, Presidents Day and Veterans Day.