What Oklahoma charges for a single-trip OS/OW permit, the limits that trigger one, and the escort thresholds — read from the state’s own publication. This rule has been in effect since 2023-09-11.
Oversize permit
$40
One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Overweight permit
From $40
Scales with weight — there is no single figure.
+ $20 Permigo service fee per permit, state fees at cost.
Legal limits
Exceed any one of these in Oklahoma and you need a permit for this state.
Limit
Interstate
Off-interstate
Width
8'6"
8'6"
Height
14'0"
14'0"
Length
110'0"
110'0"
Gross weight
80,000 lbs
90,000 lbs
Single axle
20,000 lbs
Tandem axle
34,000 lbs
Trailer length
53'0"
What the permit costs
Oklahoma prices a single-trip permit as flat rate. One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Escort requirements
Thresholds by road class. Where two classes differ, the road you are actually on governs.
Multilane (divided)
Width
Requirement
Over 12'0"
1 rear escortMore than 12' wide (verbatim 730:50-5-18(b)(1)): front escort on two-lane AND super two-lane highways; rear escort on multi-lane. Strict 'greater than twelve (12) feet' — a 12'0" load takes no escort (a real 12'0"-wide)
Over 14'0"
1 rear escortMore than 14' wide (verbatim 730:50-5-18(b)(2)): TWO escorts, front + rear, on two-lane or super two-lane; rear escort on all multi-lane highways.
Over 16'0"
1 front escort + 1 rear escortMore than 16' wide = front + rear escorts on ALL roads (730:50-5-18(b)(2)) — AND a >16' load cannot use the Interstate at all: permits issue only if 'the load does not exceed 16 feet in width when proposed for operation on the [Interstate] during any portion of the trip' (730:50-5-6(a)(3)). $500 Special Movement Fee for newly manufactured items >16'–23'.
Over 20'0"
1 front escort + 1 rear escortOver 20' wide: OHP escort contract territory — the DPS application (form 14054LD) initiates 'a contract for Oklahoma Highway Patrol escort service of oversize loads in excess of 20 feet' (5–7 working days to contract; email [email protected]). Axis unstated on the form (width presumed); OHP is otherwise fully discretionary. Dual-lane superloads cap at 20' out-to-out on the state system (730:50-5-4(m)(8)).
Height
Requirement
15'9" and over
1 front escort + 1 rear escort · height pole15'9" or more high (verbatim 730:50-5-18(b)(3)): TWO escorts, front + rear; the escort carries a height pole of non-conductive, flexible, non-fragile material (730:50-5-16(c)(8) — rides the escort, no third vehicle); and 'all public utilities and railroads along the route must be contacted in advance of the move by the permittee' — a notification duty on ODOT's Contact List form, not a state survey.
Length
Requirement
Over 70'0"
Conditions applyOver 70' overall: STATUTORY CAP for any combination OTHER than a truck-tractor/semi-trailer — verbatim §14-103(C)(3)(b): '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.' A truck+trailer or other non-TT-semi rig over 70' needs a permit even at legal width/height
Over 80'0"
Conditions applyNO length-based escort on multi-lane highways — at any length. 730:50-5-18(b)(4)-(5) place length escorts on two-lane/super two-lane only
Rear overhang
Requirement
4'0" and over
Marking requiredRear overhang of 4' or more must be flagged: ONE flag at the extreme rear if the projection is 2' wide or less, TWO flags (each rear corner) if wider (730:50-5-15(b) verbatim breakdown; night = lamps). Oklahoma has NO fixed statutory overhang limit (§14-104 repealed) — but rear load extension COUNTS INTO the measured semitrailer length (5-6(b)(5)), so a tail can push a 53' trailer over its permit trigger. Envelope caps 25' front / 30' rear; unitized-equipment protrusions (front+rear summed) over ⅔ wheelbase = annual-oversize-permit territory (5-7(4)).
Weight
Requirement
Over 209,000 lbs
superload permitOver 209,000 lb gross exceeds EVERY OL-1 configuration (the drawing
2-lane
Width
Requirement
Over 12'0"
1 front escortMore than 12' wide (verbatim 730:50-5-18(b)(1)): front escort on two-lane AND super two-lane highways; rear escort on multi-lane. Strict 'greater than twelve (12) feet' — a 12'0" load takes no escort (a real 12'0"-wide)
Over 14'0"
1 front escort + 1 rear escortMore than 14' wide (verbatim 730:50-5-18(b)(2)): TWO escorts, front + rear, on two-lane or super two-lane; rear escort on all multi-lane highways.
Over 16'0"
1 front escort + 1 rear escortMore than 16' wide = front + rear escorts on ALL roads (730:50-5-18(b)(2) last sentence). Newly manufactured items >16' to ≤23' wide pay the $500 Special Movement Fee instead of the $40 OS base (fee PDF (a)8; not houses/manufactured homes) — commodity-conditional, not
Over 20'0"
1 front escort + 1 rear escortOver 20' wide: OHP escort contract territory — the DPS application (form 14054LD) initiates 'a contract for Oklahoma Highway Patrol escort service of oversize loads in excess of 20 feet' (5–7 working days to contract; email [email protected]). Axis unstated on the form (width presumed); OHP is otherwise fully discretionary. Dual-lane superloads cap at 20' out-to-out on the state system (730:50-5-4(m)(8)).
Height
Requirement
15'9" and over
1 front escort + 1 rear escort · height pole15'9" or more high (verbatim 730:50-5-18(b)(3)): TWO escorts, front + rear; the escort carries a height pole of non-conductive, flexible, non-fragile material (730:50-5-16(c)(8) — rides the escort, no third vehicle); and 'all public utilities and railroads along the route must be contacted in advance of the move by the permittee' — a notification duty on ODOT's Contact List form, not a state survey.
Length
Requirement
Over 70'0"
Conditions applyOver 70' overall: STATUTORY CAP for any combination OTHER than a truck-tractor/semi-trailer — verbatim §14-103(C)(3)(b): '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.' A truck+trailer or other non-TT-semi rig over 70' needs a permit even at legal width/height
Over 80'0"
1 front escortMore than 80' overall (verbatim 730:50-5-18(b)(4)): one FRONT escort — truck-tractor/semi-trailer combos on two-lane highways; any other combination on two-lane AND super two-lane. Two real
Over 100'0"
1 front escort + 1 rear escortMore than 100' overall (verbatim 730:50-5-18(b)(5)): front + rear escorts on two-lane and super two-lane highways — NOT on multilane. (A real 99'11")
Rear overhang
Requirement
4'0" and over
Marking requiredRear overhang of 4' or more must be flagged: ONE flag at the extreme rear if the projection is 2' wide or less, TWO flags (each rear corner) if wider (730:50-5-15(b) verbatim breakdown; night = lamps). Oklahoma has NO fixed statutory overhang limit (§14-104 repealed) — but rear load extension COUNTS INTO the measured semitrailer length (5-6(b)(5)), so a tail can push a 53' trailer over its permit trigger. Envelope caps 25' front / 30' rear; unitized-equipment protrusions (front+rear summed) over ⅔ wheelbase = annual-oversize-permit territory (5-7(4)).
Weight
Requirement
Over 209,000 lbs
superload permitOver 209,000 lb gross exceeds EVERY OL-1 configuration (the drawing
Movement restrictions
Restriction
In Oklahoma
Night travel
Daylight hours only
Weekends
No blanket restriction
Holidays
Restricted
Movement hours
Situation
Window
Oversize (any over-dimension)
Daylight only: ½ hr before sunrise → ½ hr after sunset (§14-101(F)); night endorsement possible 'for good cause'
Overweight-only, legal dims
Continuous 24/7 (§14-101(F) carve-out)
OKC / Tulsa / Cleveland Co. Interstates
Curfew 7:00–9:00 AM + 3:30–6:30 PM Mon–Fri (730:50-5-1(1)); I-35 Exits 106–108 exempt; OW-only, special combos, LCVs exempt (5-1(3))
Weekends
Unrestricted (houses/buildings only: no Sat/Sun moves, 5-21(2))
Holidays — BANNED at any time
New Year's Day, Memorial Day, July 4, Labor Day, Thanksgiving, Christmas (§14-101(G)(1)) — fixed dates, no observance shifts; APPLIES TO OW-ONLY TOO
Holidays — explicitly allowed
MLK Day, Presidents Day, Veterans Day (§14-101(G)(2))
Overheight special (SOTPLT)
Statutorily exempt from the daylight rule AND the holiday ban (§14-103(B)(1)); local roads only
NEVER by overall length — the SEMITRAILER is the trigger, measured 'from the front of the trailer to the rear of the trailer or any extension of the load beyond the rear' (730:50-5-6(b)(5)) — i.e. trailer + REAR tail only; load extending FORWARD over the tractor does not count into this measure. Measured ≤53': legal everywhere. 53'–59'6" measured: PERMIT-FREE on the National Network + 5-mile access (§14-118(C)/5-6(b)(1) — e.g. a 53' trailer + 6'6" tail, or a 48' trailer + 11'6" rear tail, both = 59'6", both NN-free; 59'6" exactly is inclusive) — but off-NN that same rig needs the round-trip overlength permit (5-6(d), trailer-specific). Over 59'6" measured: permit everywhere
Where the 59'6" allowance applies
NATIONAL NETWORK ONLY, plus 5 miles of 'reasonable access' — measured by the most direct route of travel, not a radius (730:50-5-6(g)). The NN = the Interstates + the US-DOT-designated US/state routes (23 CFR Part 658). ODOT may also treat a two-lane gap of ≤15 miles between four-lane NN segments as access, for direct travel between them only (5-6(h)). EVERYWHERE ELSE a trailer measuring over 53' needs the round-trip overlength permit (5-6(d), trailer-specific).
Any other combination (truck + trailer, etc.)
>70' overall — verbatim §14-103(C)(3)(b): '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'
Single truck
>45' overall — verbatim: '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'
Doubles / triples
HARD per-unit cap 53' — 'No permit may be issued for any such combination in which a semi-trailer or trailer exceeds 53 feet' (5-6(b)(2)): the 59'6" NN allowance NEVER applies to doubles; cargo units cap at 110' combined, Interstate + 4-lane-divided only; triples 29' units / >95' cargo prohibited (5-6(b)(3)); heaviest trailer first, empty never precedes loaded
Does overhang count?
YES — TWICE: (1) rear load extension counts INTO the measured trailer length (5-6(b)(5), incl. 'any appendages') — this is the TT-semi permit trigger (a 53' trailer + 12' tail measures 65' → permit required everywhere; OkiePROS prints exactly this 'Trailer and Load' figure)
Escorts by length (any permit type)
>80' = 1 front on two-lane (TT-semi) / two-lane + super-2 (other combos); >100' = front + rear on two-lane/super-2; NO length escort on multilane or Interstate at ANY length (730:50-5-18(b)(4)-(5); pending docket 25-1024 merges the classes at >90')
OL-1 p.3 verbatim: spacings 'ARE MINIMUMS AND MAY BE INCREASED', group weights 'ARE MAXIMUMS AND MAY NOT BE EXCEEDED BY ANY TOLERANCE'; green routes on the Special Overweight Truck Permit Route Map only; 'TRAVEL ON OKLAHOMA TURNPIKES MUST BE APPROVED BY THE OKLAHOMA TURNPIKE AUTHORITY'
Where these permits come from
If you file yourself, this is the office you are dealing with. Check the linked page — some states issue OS/OW permits through their highway patrol or revenue department rather than the DOT.
OAC 730:50 Subch. 5 (eff 9-11-23, rules.ok.gov/code + ODOT consolidated PDF, checked live 2026-07-13) + 47 O.S. §§14-… · oklahoma.gov · in effect since 2023-09-11. Fees and rules change; the linked document is always the authority.
Other states
Colour shows how each state prices a permit. Alaska, Hawaii and DC are not served.
