Oklahoma oversize and overweight rules

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Without a permit, a load in Oklahoma can be up to 8 ft 6 in wide, 14 ft high on state and U.S. highways and turnpikes or 13 ft 6 in high on county roads and 80,000 lb gross on interstates or 90,000 lb gross on roads other than interstates, with the conditions in the legal limits table. The first pilot car is required for loads over 12 ft wide, or over 90 ft long on two-lane roads, and a height pole car for loads 15 ft 9 in or more high, with the conditions in the pilot car table.

Estimate your permit fee

Jump to a section
  1. Legal limits
  2. Axle weights
  3. Pilot cars
  4. When you can travel
  5. Permit fees
  6. Where to apply
  7. What the rules don’t say
  8. Questions
  9. Sources

Axle weight limits

Axle or groupWithout a permitWith a permitRoads
Any single axle

20,000 lb

Not setAll roads
2 axles in a group, spread over 3 ft 4 in to 7 ft 11 in

34,000 lbA tandem here means two axles spaced more than 40 and up to 95 inches apart; wider split tandems (up to 120 inches) and tri-axles are governed by the bridge formula.

Not setAll roads
Gross weight

80,000 lbThe axles must also stay within the bridge formula limit.

Not setInterstates
Gross weight

90,000 lbThe axles must also stay within the bridge formula limit.

Not setRoads other than interstates

The bridge formula applies to axle groups on all roads (47 O.S. § 14-109(A)(2)). “With a permit” lists the state’s permit figures; read each row’s condition, since some are review thresholds rather than limits.

Source: 47 O.S. §§ 14-101, 14-107 and 14-109, OAC 730:50-5-4

Pilot cars and escorts

Each row is one rule. A load can meet several; the permit lists the escorts for your move.

LoadRoadsFrontRearHeight polePolice
over 16 ft wideOAC 730:50-5-18(b)(2)All roads1 in front, 1 behind1100
15 ft 9 in or more highA height pole is required on the escort vehicles, though the rule leaves open which car carries it; the permittee must also alert any utilities and railroads on the route beforehand.OAC 730:50-5-18(b)(3); 730:50-5-16(8)All roads1 behind, 1 height pole car0110
over 12 ft wideSuper two-lane highways fall under the two-lane figure. State law also requires escorts above 12 feet wide, in the form ODOT prescribes.OAC 730:50-5-18(b)(1)Two-lane roads1 in front1000
over 14 ft wideSuper two-lane highways fall under the two-lane figure.OAC 730:50-5-18(b)(2)Two-lane roads1 in front, 1 behind1100
over 90 ft longSuper two-lane highways fall under the two-lane figure. The threshold moved from 80 to 90 feet in a rule effective 2026-07-13, and older guidance still lists 80 feet.OAC 730:50-5-18(b)(4)Two-lane roads1 in front1000
over 100 ft longSuper two-lane highways fall under the two-lane figure.OAC 730:50-5-18(b)(5)Two-lane roads1 in front, 1 behind1100
over 12 ft wideState law also requires escorts above 12 feet wide, in the form ODOT prescribes.OAC 730:50-5-18(b)(1)Two or more lanes in your direction1 behind0100
over 14 ft wideOn multilane roads a front escort is added only for loads wider than 16 feet.OAC 730:50-5-18(b)(2)Two or more lanes in your direction1 behind0100

Source: OAC 730:50-5-18(b)(1) to (5)

When you can travel

Holidays

Any vehicle moved under an Oklahoma oversize permit

No movement at any time on six holidays: New Year’s Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving, Christmas. Whole calendar days; no pre-holiday window found. 2026: Thanksgiving Thu Nov 26; Christmas Fri Dec 25; New Year’s Day Fri Jan 1, 2027. MLK, Presidents and Veterans Day are open. Emergency authorizations may allow holiday travel.

47 O.S. 14-101(G)Dates computed

Weekends

No general weekend restriction found. Houses and buildings moved under 47 O.S. 14-103C may not move on Saturday or Sunday.

47 O.S. 14-101(G) and 14-103C; OAC 730 ch. 50

Night

Oversize loads

Daylight only, from 30 minutes before sunrise to 30 minutes after sunset. Overweight-only loads may travel continuously. Emergency authorizations may differ.

ODOT Size and Weight FAQ, times of travel

Cities and rush hour

Oklahoma, Tulsa and Cleveland counties (Interstates)

Oversize loads on Interstates in Oklahoma, Tulsa and Cleveland counties

Not allowed Mon to Fri 7 to 9 a.m. and 3:30 to 6:30 p.m. Special combination vehicles, longer combination vehicles and overweight-only vehicles are exempt, as is the 2-mile stretch of I-35 in Cleveland County between SH 9 East (Exit 108) and SH 9 West (Exit 106).

OAC 730 ch. 50, Travel time (730:50-5-1); ODOT Size and Weight FAQ

Every state on one page: holiday, weekend, night and city restrictions by state. For this year’s holiday, see Thanksgiving 2026 restrictions.

Single trip permit fees

Within each kind of fee the largest that fits your load applies, and the kinds add up.

FeeWhen it appliesAmount
Permit feePermit Fees table, (a) Single trip/monthly, rows 01 and 02Every single trip permit$40
Added fee, over size and over weightPermit Fees table, (a) Single trip/monthly, row 03 Oversize and Overweightover 8 ft 6 in wide and over 80,000 lb gross$40
Added fee, over size and over weightPermit Fees table, (a) Single trip/monthly, row 03 Oversize and Overweightover 13 ft 6 in high and over 80,000 lb gross$40
Weight feePermit Fees table, (a) Single trip/monthly, row 02 noteover 80,000 lb gross$10 for each full 1,000 lb over 80,000 lb
Special movement feePermit Fees table, (a) Single trip/monthly, row 08 Special Movement Feeover 16 ft up to 23 ft wideNot computed here, see the source

Source: ODOT Size and Weight Permits, Permit Fees table, (a) Single trip/monthly, rows 01 to 03

Estimate the Oklahoma permit fee

Width
Height
Length
Gross weight

Enter your load’s size and weight to see the fees that apply.

Where to apply

Oklahoma issues permits through OkiePROS. Start from the agency’s permit page, which leads to it.

What the rules don’t say

Where the sources are silent or say two things. Ask the state before you rely on these.

Legal limits

  • Confirm the length limit for a semitrailer or combination (47 O.S. § 14-103(C)) with ODOT, since the published single truck limit does not settle it.
  • Oklahoma law gives a height only for county roads and for turnpikes, Interstate, U.S. and state highways. Confirm the height limit on city streets with the city before a tall move.

Axle weights

  • Overweight permit weights come from ODOT Standard Drawing OL-1, which has about 44 configuration drawings and no general table. Ask which drawing fits your truck; a load past what the OL-1 trucks cover is a super load.
  • A permit condition caps a fixed single axle at 20,000 pounds or 600 per inch of tread, but it sits beside an emergency requirement, so it may not be the routine limit. Confirm axle and per-inch limits for your permit.
  • A retractable axle is held to 8,000 pounds or its rating, whichever is less, and 240 pounds per inch of tread (OAC 730:50-5-4(d)). Check this if you run a lift axle.
  • Other permit types carry their own limits, including the annual envelope permit (120,000 pounds gross, no Interstate), a 23,000 pound allowance per single axle for certain dual lane and Port of Catoosa moves off the Interstate, and annual variances for listed commodities. Ask which fits.
  • Title 47, Chapter 14 doesn’t state a legal steer axle limit or a pounds-per-inch tire limit for legal loads; ODOT’s permit drawings show 15,000 pounds on the steer axle. Ask the permit office before loading a heavy steer axle.
  • No permit tolerances apply (OAC 730:50-5-3). Rather than a seasonal calendar, ODOT or local authorities post lower weights on damaged roads and bridges by signs (47 O.S. § 14-113), so watch for postings.

Pilot cars and superloads

  • The length trigger for escorts rose from 80 to 90 feet in a rule effective July 13, 2026. Some ODOT compiled rules and pilot car summaries may still show the old numbers, so confirm the current tiers.
  • The rules set no numeric trigger for a law enforcement escort. The permit decides, and Highway Patrol escorts are arranged through ODOT’s Size and Weight Permits Division, often with a long lead time and a fee.
  • At 15 feet 9 inches tall or more a load needs a measuring pole, and the height rule calls for a front and a rear escort. The rule doesn’t say which car carries the pole, so confirm staffing for a tall, wide load.
  • Manufactured homes, portable buildings, houses and buildings follow separate escort wording, including two escorts plus a flag person for wide or long ones. Some farm implement dealer hauls are exempt, and a limited travel over-height permit can waive the height escort.
  • The escort rule doesn’t set a tier for rear overhang or gross weight alone. Overweight loads beyond the OL-1 trucks are super loads, so ask what escorts your permit requires.

Permit fees

  • ODOT’s fee table is undated, so the $40 base and $10 per 1,000 pounds may have changed. Confirm the current fee before quoting.
  • The table never defines the legal limit where the weight charge starts. It is 80,000 pounds on the Interstate but generally 90,000 elsewhere unless operating under an overweight permit (47 O.S. § 14-101(E)). How partial thousands of pounds count is not stated either.
  • The $80 fee applies when a load is both oversize and overweight. An overlength and overweight load, or a load overweight only by axle, may be priced differently than a simple $40 plus the weight charge, so ask the permit office.
  • Extras may apply: $500 for moving newly built items 16 to 23 feet wide, a $2 fax or email fee, a 4 percent card fee, and Highway Patrol escort charges. Police escorts take roughly 2 to 4 weeks to arrange.
  • Monthly, annual, manufactured home and other permit types carry their own fees. Oklahoma expects a new online permitting system around fall 2027 that may change the fee table.

Where to apply

  • Start from ODOT’s Size and Weight Permits page and confirm which online system currently takes applications.

Questions about Oklahoma

When do I need an oversize permit in Oklahoma?
Without a permit, a load in Oklahoma can be up to 8 ft 6 in wide, 14 ft high on state and U.S. highways and turnpikes or 13 ft 6 in high on county roads and 80,000 lb gross on interstates or 90,000 lb gross on roads other than interstates, with the conditions in the legal limits table. Loads past these figures generally need a permit from the state; see the legal limits table for the exceptions and for length, which depends on the vehicle.
How much does an Oklahoma oversize permit cost?
On the fee schedule we checked, a single trip permit starts at $40. Some charges are not computed here; the fee table names them. The estimator on this page adds up the fees for your load.
When do you need a pilot car in Oklahoma?
The first pilot car is required for loads over 12 ft wide, or over 90 ft long on two-lane roads, and a height pole car for loads 15 ft 9 in or more high, with the conditions in the pilot car table. How many cars, and whether they lead or follow, depends on the road; the pilot car table lists each rule.
When can oversize loads travel in Oklahoma?
At night: Daylight only, from 30 minutes before sunrise to 30 minutes after sunset. Overweight-only loads may travel continuously. Emergency authorizations may differ. This applies to oversize loads. On weekends: No general weekend restriction found. Houses and buildings moved under 47 O.S. 14-103C may not move on Saturday or Sunday. Rush hour and city curfews also apply; they are listed on this page.
Can oversize loads move on holidays in Oklahoma?
No movement at any time on six holidays: New Year’s Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving, Christmas. Whole calendar days; no pre-holiday window found. 2026: Thanksgiving Thu Nov 26; Christmas Fri Dec 25; New Year’s Day Fri Jan 1, 2027. MLK, Presidents and Veterans Day are open. Emergency authorizations may allow holiday travel. This applies to any vehicle moved under an Oklahoma oversize permit.

Sources

Found something wrong or out of date? Report an error to hello@thirteensix.com.

This page is a dated summary in our own words, not legal advice. The permit the state issues governs your move, and states change their rules; check with Oklahoma before you travel.

Bordering states

More guides: all states and the rules library.

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