Minnesota Department of Transportation

511 Travel Info

Oversize/Overweight Permits

Frequently asked questions (FAQs)

Oversize/Overweight Permits

  1. How do I get a permit?
  2. How do I increase my registered weight?
  3. How long will it take to receive my permit?
  4. What are the maximum dimensions of a vehicle that I can operate without needing an overweight/overdimension permit?
  5. When do I need a permit?
  6. When am I exempt from getting a permit?
  7. When are escorts required?
  8. When do seasonal load limits or increases take effect?
  9. Where do I find information concerning new laws, rules and regulations about overdimension permits?

Oversize/Overweight Permits

How do I get a permit?

You can get a permit in any of three ways:

  • ORDER ONLINE 24/7
    • For instructions and tips on how to enter routes into MnDOT's online Oversize Overweight Permitting System, please see guide.
  • Permit Service
  • Walk-in

How do I increase my registered weight?

Please note that obtaining an Oversize/Overweight Permit does not increase your vehicle’s registered weight. To get a temporary weight increase permit, please visit Minnesota Department of Public Safety, Driver and Vehicle Services Temporary Registration Weight Increase Permits.

A 30, 60 or 90-day temporary weight increase permit is available at any Minnesota Deputy Registrar office or can be requested by fax.

  • Visit a Deputy Registrar:
    • Search for a local office on the Office Locations page
    • Enter a starting address or Zip Code
    • Select “Vehicle Titling and Registration including Tab Renewals” from the services list
    • Click “Find Office Locations” to see a list of deputy registrar offices
  • Request by Fax:

If traveling on city, township, or county roads, a permit must be obtained from that government entity.

How long will it take to receive my permit?

Generally 1 business day.

However, three (3) or more business days are required for processing applications that need special handling. (Special handling is defined as application(s) requiring, but not limited to the following: district review, route survey, and most self-propelled vehicles.)

What are the maximum dimensions of a vehicle that I can operate without needing an overdimension permit?

  • Height: 13'6"
  • Width: 8'6" This excludes rearview mirrors or temporary load securement devices that may extend an additional three inches on each side of the vehicle or load
  • Length: Maximum lengths for various vehicles are:
    • Single motor vehicle: 45'
    • Mobile crane: 48'
    • Each trailer or semi-trailer of a twin trailer combination: 28'6"
    • Trailer of a two-vehicle combination: 45'
    • Semi-trailer of a two-vehicle combination: 48'
    • Semi-trailer of a two-vehicle combination, if the distance from kingpin to the center of the rear axle group is 43' or less: 53'
    • Twin trailer combination, drive-away saddlemount combination, and drive-away saddlemount vehicle transporter combination: 75'
    • Truck-tractor with semi-trailer combination and all other two-vehicle combination: 75'

When do I need a permit?

An oversize and/or overweight permit is required when:

  • An overall loaded width exceeds 8’6”
  • An overall loaded height exceeds 13’6”
  • An overall loaded length exceeds 75’0” on combination vehicles
  • An overall loaded length exceeds 45’0” on single vehicles
  • When the overall GVW exceeds 80,000 lbs

When am I exempt from getting a permit?

  • When hauling utility poles (over-length only)
  • Driving or towing Implements of Husbandry (e.g. farm equipment) at speeds less than 30 miles per hour - no interstate travel is allowed
  • Through a Governor's Order or Disaster Relief

When are escorts required?

Pilot car escorts are required by law. Minnesota requires drivers of pilot cars and escort vehicles to hold a current Minnesota Certification. See Pilot Car Escort Rules.

Colorado, Florida, North Carolina, Oklahoma, Utah, Virginia and Washington certification holders are allowed to escort overdimensional loads in Minnesota, provided that they meet Minnesota insurance, driver, vehicle, signage, lighting, and safety equipment requirements.

On multi-lane, divided roadways

Only one rear certified escort is required when:
  • Exceeding 15 feet wide as measured at bottom of load;
  • Exceeding 16 feet wide as measured at top of load; or
  • Exceeding 110 feet long
Only one front & one rear certified escort is required when:
  • Exceeding 150 feet long

On undivided roadways

Only one front & one rear certified escort is required when:
  • Exceeding 15 feet wide as measured at bottom of load;
  • Exceeding 16 feet wide as measured at top of load; or
  • Exceeding 110 feet long
Only one lead licensed Peace Officer is required when:
  • Any part of the load or vehicle extends beyond the left of centerline

MnDOT may require additional escorts when deemed necessary to protect public safety or to ensure against undue damage to the road foundations, surfaces or structures.

When do seasonal load limits or increases take effect?

See the seasonal load limits page.

Where do I find information concerning new laws, rules and regulations about overdimension permits?

Please refer to: