Oklahoma Oversize & Overweight Permit Requirements & Rules (2026)

In Oklahoma, any load that exceeds the legal size or weight limits requires an oversize/overweight permit before it moves. Below are the legal limits and the requirements that apply at each threshold.

1When you need a permit

A load is oversize or overweight once it passes any of these:

Dimension	Oklahoma legal limit	Permit if over
Width	8 ft 6 in	Wider
Height	13 ft 6 in	Taller
Length (combination)	65 ft	Longer
Gross weight	80,000 lbs	Heavier
Single axle	20,000 lbs	Heavier
Tandem axle	34,000 lbs	Heavier

Rear overhang is limited to 4 ft and front overhang to 3 ft before it counts toward length, and any overhang must be flagged.

2Escort & pilot car requirements

When the load reaches…	Oklahoma requires
12.01 ft wide	1 escort (pilot car)
14.01 ft wide	2 escorts
15.67 ft high	Escort with a height pole / pole car
90.01 ft long	1 escort · 100.01 ft → 2 escorts
999 ft high or 999 ft wide	Route survey required

3When you can travel

Daylight only — sunrise to sunset.
Weekend travel allowed within dimensional limits.
No continuous travel for oversize beyond envelope; OW-only may be allowed per permit specifics..
Holiday blackouts: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day.

4Superloads in Oklahoma

A load is a superload once it exceeds any of these:

Superload trigger	Threshold
Width	16 ft
Height	16 ft
Length	110 ft
Gross weight	120,000 lbs

Superloads require a route survey and roughly 5 days of lead time for approval.

5Permit timing

Standard single-trip: ~1 business day to issue.
Superload: ~5 days (route survey + review).
Validity: a single-trip permit is good for ~5 days.

Get the full cost of your load

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Note: these requirements are for planning and are verified as of May 2026. Rules change — always confirm with the state permitting authority before dispatch.

?Oklahoma permit FAQ

When do I need an oversize permit in Oklahoma?

Once a load exceeds any legal limit: 8 ft 6 in wide, 13 ft 6 in high, 65 ft long (combination), or 80,000 lbs gross.

When do I need a pilot car in Oklahoma?

Oklahoma requires one escort at 12.01 ft wide (two at 14.01 ft), a height pole at 15.67 ft high.

Can you drive an oversize load at night in Oklahoma?

No — oversize loads move daylight-only, sunrise to sunset. Weekend travel is allowed within limits.

What counts as a superload in Oklahoma?

Over 16 ft wide, 16 ft high, 110 ft long, or 120,000 lbs gross. It requires a route survey and about 5 days of lead time.

How much does a Oklahoma oversize permit cost?

The state permit fee depends on the load's size and weight. The full cost of a move also includes escorts, police, route surveys, engineering, and the truck rate, which vary by route. FreightDeck estimates all of it for your exact load — price your Oklahoma load with FreightDeck →.