State Oversize Permits & Escorts Information


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Ontario Phone Number 416-246-7166, extension 6300 or 800-387-7736

DOT Website

PERMITS: Permits valid for three to five days. Must have permit prior to entering.

OPERATING TIME: One-half hour before sunrise to one-half hour after sunset, Monday through Friday. Weekend travel allowances depend on dimensions and routes, and some weekend and Friday limitations occur during summer months.  Night travel is permitted up to 10′ wide and 14′ high, but “conspicuity requirements” must be met, including reflectorizcd “D” signs.

RESTRICTED TRAVEL: Permit travel not allowed in the greater Toronto area between the hours of 7:00 am – 9:00am and between the hours 0f 3:30pm – 6:30pm.


Tractor Wheelbase: For legal size loads, Ontario is now allowing tractor wheelbase to exceed 244″ as long as thc trailer wheelbase is within prescribed limits.  At this time they are still officially restricting oversize and overlength loads to 244″ tractor wheelbase unless special authorization is obtained.

Spread Axles: A spread axle group (over 6’spacing) is allowed and given as much weight as a closed tandem (about 22,000 per axle legal weight).

Lift Axles: Ontario gives less weight on axles.

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  • 53’ semi-trailer (with some restrictions)
  • 75′ overall

Overhang: 4’11” rear, with overall length not to exceed 75′

Width: 8’6″

Height: 13’7″


  • Steer – 12,000
  • Single – 22,000
  • Tandem – 39,600
  • Tridem – 59,400

Length: 120’

Width: 16’3″

Height: 14′

Weight: Depends on axle spacings and tire sizes.

Note: Route Surveys may be required over these dimensions, Expect extra wait time for issuance of permit.



  • Over 120′- 1 escort
  • Over 150′- 2 or more police escorts

Overhang: Over 15′ rear overhang – l escort


  • Over 13′ – 1 escort 0n all highways. (Route survey may also be required for over 13′ wide.)
  • Over 15′ – 2 escorts on two-lane highways.
  • Over 16’4″ on all highways – 2 or more police escorts.

Height: Over 15’11” 1 escort (Route survey may be required for over 14′ high.)

Note: Some routes may impose additional escort requirements. Excessive weight vehicles may require police escorts.

SIGNS, FLAGS & LIGHTS: Flags are required on all four corners and/or any front and rear projections of any oversized vehicle/load (light at night). “Oversize load” or “D” signs front and rear are also required on all oversized vehicle/loads. Signs must be removed or covered when not required.

Important Notice:
The following is provided for informational purposes only. We do not procure or arrange permits on behalf of carriers or discuss permit and escort requirements for particular shipments. The following links provide general guidelines for oversize permits and escorts for heavy haul shipping by state/province. State regulations are subject to change; If you find inaccurate information, please let us know, and we will update the page accordingly.