Minnesota Department of Transportation

511 Travel Info

Oversize/Overweight Permits

Permits Glossary

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Traveler information including weather-related road conditions, road work, commercial vehicle restrictions (includes a Truckers page), road closures and other travel information via the phone or Internet, 24 hours a day, seven days a week. Dial 511 from your phone or visit www.511mn.org.


A, B, C weights

Also referred to as bridge class, weight category and bridge weight. These are bridge weight categories that are determined by total axle group weight, and/or total gross vehicle weight (GVW).
A, B, C weight categories are used to determine route and specific restrictions applied to the bridges on the approved annual permit trip log.
Refer to Limits for Oversize/Overweight (OSOW) Annual Permit Attachment for allowable A, B, C axle group weights.

Account number

A unique number the MnDOT Permit office assigns each OSOW permit account to identify that account holder’s permit information.

Agricultural products

Products that are agricultural, horticultural, viticultural, dairy products, livestock, wildlife, poultry, bees, forest products, fish and shellfish, and their products, including processed and manufactured products, and products raised or produced on farms, including processed or manufactured products.

Annual permit

A permit that is valid for one year (365 days) from the validation date to haul loads that exceed legal size and/or weight within specific guidelines for specific commodities. Online route verification may be required for each move.


The number assigned to the application.

Application status:

  • Working - The application is currently being worked on.
  • Update - The application is returned from MnDOT for you to update information.
  • Bridge - The application has been sent to the bridge office for manual review.
  • Supervisor - The application requires a Supervisor’s review for approval.
  • Approved - The application is available for payment and issue.
  • Completion - The application has been returned from the bridge office and is awaiting processing.
  • District - The application has been submitted to the district(s) for notification and review.
  • Issued - The application has been issued.

ARPS account

See Organization Account

Auto-generated routing

Also known as the Let system create my route function on the online permitting system. A function where the system provides a route based on a beginning and ending route and location.


System issued permits. Permits are generally auto-issued for loads that do not exceed14’6” W x 14’6”H x 110’0” L, do not exceed class A weights, and do not contain notes or unique symbols.

Axle groups

A group of axles (or single axle) supporting one section of a vehicle where the groups are separated by 8’ or more.

Axle width

The width of a single axle line. Example, my axle width is 8’0” or 8’6” wide.


Bad weather / road condition restrictions

OSOW Movement is not allowed during hazardous weather or road conditions, when visibility is less than 500’, or when winds prevent the vehicle from staying within the travel lane.

Bridge check

A manual bridge analysis that the MnDOT Bridge Office performs for routes submitted.

Bridge weight class

The load capacity of a bridge structure indicating if a load can cross with the axle spacings and weights they are carrying.


Central Office

MnDOT’s headquarters location in St. Paul. MnDOT's Oversize/Overweight Permits Office is located in MnDOT’s Central Office Transportation Building, located at 395 John Ireland Blvd, St. Paul, MN 55155. Statewide permitting for all Minnesota trunk highways, US highways, and Interstate roadways is processed at this location.

Certified pilot car / escort

Escort vehicle operator who is certified by the Minnesota Department of Public Safety to escort vehicles hauling oversize / overweight loads. All pilot car and escort drivers must obtain a certification card through the Minnesota Pilot Car Certification Program to be able to escort oversize/overweight vehicles on state roadways.

Certified peace officer escort

Escort vehicle operator who is also a Minnesota law enforcement officer and certified by the Minnesota Department of Public Safety to escort vehicles hauling oversize/overweight loads.

CDL (Commercial Driver’s License)

A CDL is required to drive a Commercial Motor Vehicle (CMV). Driving a CMV requires a higher level of knowledge, experience, skills, and physical abilities than that required to drive a non-commercial vehicle. See Commercial Driver’s License Program for more details.

Commercial motor vehicle (CMV)

A motor vehicle or combination of motor vehicles used in commerce to transport passengers or property if the motor vehicle:

    1. Has a gross combination weight rating of 26,001 or more pounds inclusive of a towed unit with a gross vehicle weight rating of more than 10,000 pounds; or,
    2. Has a gross vehicle weight rating of 26,001 or more pounds; or,
    3. Is designed to transport 16 or more passengers, including the driver; or,
    4. Is of any size and is used in the transportation of materials found to be hazardous for the purposes of the Hazardous Materials Transportation Act and which require the motor vehicle to be placarded under the Hazardous Materials Regulations (49 CFR 172, subpart F). (49CFR383)

Continuous travel

Loads that are up to 9’ wide and/or 110’ long can travel 24 hours a day/seven days a week.


Only the military are allowed to move equipment and vehicles without having at least a one-half mile separation between the moves.

County permit offices

Minnesota County permit offices issue OSOW permits for their local county roads. Please see the county weight information website to contact any of Minnesota’s 87 county permit offices.


Details button

A button found at the bottom of the online permitting system routing page. Clicking on details will reveal route details, providing information such as total mileage, mileage by road segment, constraint/failure location details and general travel restrictions.


A district is one of the seven geographical subdivisions of MnDOT.

Divisible load

Any load being moved which can be separated into units of legal weight without affecting the physical integrity of the load.


Electronic copy

In lieu of a paper copy, an electronic copy of the permit may reside on a portable electronic device as long as it is a complete and legible copy of the issued permit.

Estimated weight (EW)

On the online permitting system, for unit one and each of the vehicles, enter the empty weight of the individual vehicle in the EW field.

Evaluate button

On the online permitting system, the evaluate button is displayed with custom routing and is used to verify a route during intervals, and/or after all custom route information has been entered.


This occurs when legislation allows specific commodities to be transported with different regulations than other commodities.


General Provisions (Minnesota)

A list of general conditions that apply to all oversize and overweight movement.

Generate button

The generate button is displayed with auto-generated routing and is used to verify a route once the beginning and end route, and location information have been entered.

Group Weights

Total weight of the total set of axles. Example, tandem, tridem (tri-axle), quad.

GVW (gross vehicle weight)

The total weight of a fully loaded vehicle or trailer, including all cargo, fluids, passengers, and optional equipment, as measured by a scale.

GVWR (gross vehicle weight rating)

The value specified by the manufacturer as the maximum loaded weight a vehicle is capable of safely hauling.


Hauling unit

An empty, over-legal size combination vehicle may be moved under a single trip permit when warranted.

Hauling unit requirement

The Permittee must ensure that the hauling vehicle is adequate to handle the movement safely and meets federal and state vehicle safety requirements.



On the online permitting system, a field in the vehicles tab used to auto-enter saved vehicle information by selecting a saved ID number you’ve stored for a specific vehicle. Users with a MnDOT Organization account can save vehicle templates.

Implement of husbandry

A self-propelled or towed vehicle designed or adapted to be used exclusively for agricultural, horticultural, timber-harvesting, or livestock-raising operations.

Info button

On the online permitting system, a button adjacent to the route location box. Clicking the info button opens a dialogue box to select the off system function when routing and allows entry of additional route instructions.

I provide route

On the online permitting system, a routing operation used to enter your own custom route line by line. Vehicle weight and dimensions are taken into account to determine if a route passes or fails the custom route.



A programming language required to run the MnDOT Oversize/Overweight Permitting System.
NOTE:  HTML5 browsers such as Edge and Google Chrome no longer use Java, thus will not work with the MnDOT Oversize/Overweight Permitting System. Please see Minimum System Requirements for more compatibility information.

Job Permit

60 day permit for a specified number of moves of like loads, vehicle configurations, weights and spacings, and route.



A pin on the underside front portion of trailer equipment which connects a trailer to a power unit using a fifth wheel plate on the power unit.

Kingpin setting

A measurement taken from the king pin to the center of the rear axle group. In Minnesota the measurement is limited to 43’ or less when the combination is at its shortest length and pertains to trailers that are longer than 48’ and up to 53’.


Legal weight limitations

Minnesota statutes relating to legal weight limitations are included in the following sections: M.S. §169.822, M.S. §169.823, M.S. §169.824, and M.S. §169.87.

Let system create my route

On the online permitting system, a routing operation in which the system auto-generates routes based on weight and overall dimensions. Only enter the beginning and ending routes and location information when using this operation.

Liability for damage

The Permittee is responsible for any damage to the highway or its structures resulting from a willful or negligent act by the Permittee, as set forth in Minnesota Statute §169.88. Damages may be recovered through civil action or other remedial action defined by the department. In addition, the Permittee may be responsible for any personal property damage or injuries caused as a result of the Permittee’s movement.

Log a Trip (Trip Logging)

The process of entering your annual permit move into the MnDOT Oversize/Overweight Permitting System for route directions/approval.


A tool used to search location data such as state road junctions, towns, and/or points of interest on a specific route during the routing procedure.


M/S No

On the online permitting system, a field to enter the model number and/or serial number of the load.


On the online permitting system, a field in the routing process used to enter the distance in mileage in conjunction with Proximity settings.

Minimum system requirements

Only approved operating systems, browsers, and java may be used with the MnDOT Oversize/Overweight Permitting system. Compatibility is determined on the Login screen. On that page, users can see if their system’s browser and java versions are approved by showing PASS or FAIL.

Remote Application Submittal for 32-bit x86 Windows is supported on:

    • Internet Explorer: 8.0 or Above (not to be confused with the Edge Browser on Windows 10)
    • Mozilla Firefox: 11.0 or Above


Non-divisible load

A load that consists of a single piece or item which cannot be separated to lighten the load. Examples of non-divisible loads include, but are not limited to: columns, wood or metal trusses, buildings, or service trucks.

Non supported characters

Characters that are not allowed when entering information in the online permitting system. Examples of non supported characters: # ; ?  & ,  . /   @ !  “  : = \  + *  ~


An open text box located at the top of the application that is used to communicate with permit staff. Use the notes field to enter instructions or to reply to an application that has been returned for corrections or review. NOTE: Permits will not auto-issue your permit if information is entered in the notes field.



(Office of Freight & Commercial Vehicle Operations also referred to as CVO) - The Oversize/Overweight Permits section is part of the MnDOT Office of Freight and Commercial Vehicle Operations located at 395 John Ireland Blvd, St Paul, MN 55155.

Off System

On the online permitting system, a procedure used during the routing process to identify 1) the location/point at which the route begins its return route, 2) the proximity or junction at which the vehicle exits the state highway system to use a local road network.

Open last

On the online permitting system, allows you to open a new permit application containing the information from the previous permit application.


On the online permitting system, the process of selecting either Let system create my route “auto-generated” or I provide route “custom routing”.

Organization account

Also referred to as ORG ID number, ARPS Account, MnDOT Account Number. Customers have the option to open an account on the online permitting system. Benefits of having an account include:

    • Receive an account number specific to the company
    • Maintain stored credit card information
    • Set up company profiles
    • Add multiple users who can login under the MnDOT assigned account number
    • Copy and revise permits
    • Sort and view all applications and issued permits by the account holder
    • Save and recall or open last applications


Acronym for oversize/overweight.

Overweight fee

A damage assessment fee set by legislation for all axle weights that exceed legal weights.


Permit account number

A unique number the MnDOT Permit office assigns each OSOW permit account to identify that account holder’s permit information.

Permit Attachments

An attachment defining the limitations for oversize/overweight annual permits in Minnesota.

    • A copy of the MnDOT transportation permit, General Provisions, and Limits must be carried in the vehicle during transport of an OSOW load/vehicle and made available to law enforcement or a MnDOT official when requested.
    • An electronic copy may reside on a portable electronic device (e.g. laptop, tablet, smartphone) as long as the device provides a complete and legible copy of the documents.

Permit services

Privately owned services that help trucking companies and individuals obtain permits for many states and providences.

Permit status

Status of a permit application that you submitted to the MnDOT Permit office. The following terms describe the different permit statuses: 

    • Working – We have received your application, but we still need to review it.
    • Bridge – We have sent your application to the Bridge office for a bridge review of the route you applied for.
    • Issued – We have issued your permit. Your payment transaction is complete and we have sent your permit to you by fax or email.
    • Approved – Your permit has been issued, but your payment transaction has not been completed.
    • Update – Your application is on hold because we need additional information from you. Look in the application notes to find out what information we need from you.
    • District – The local MnDOT District where you will be hauling in is reviewing your application.
    • Multiple – Your application is currently in more than one of the above statuses.

Pilot / escort driver certification

Minn. Rules 7455 requiring the drivers of pilot cars and escort vehicles to hold current Minnesota Certification.

Pre-trip route survey

A physical survey of the complete proposed route for your OSOW load to make sure your load can safely maneuver the route with the required clearance and without causing unreasonable disruption of traffic. If your load exceeds 16’ high, 20’ wide or in some cases is excessive in length, you must perform a pre-trip route survey and submit the form to MnDOT before a permit will be issued.


On the online permitting system, a routing enhancement used to offset and/or pinpoint an exact location that is not an exact junction on the route. When selecting town, the proximity setting defaults to VICNITY OF. However, proximities can be manually adjusted to EAST OF, WEST OF, NORTH OF, SOUTH OF, or LIMITS OF.


Remember button

On the online permitting system, the remember button copies the application information into a file on your local hard drive so it can be recalled for up to 7 days, saving you from having to re-enter the data. This function is especially useful when having to close the browser, but wanting to save the application information entered on the screen.

Responsibility during movement

When MnDOT agrees to allow an alteration of state property, it must be noted on the permit. When a Permittee alters any portion of a roadway, bridge, signage, or right-of-way during a permit move, the Permittee is responsible for returning the roadway and right-of-way to the same condition, or better, than it was prior to the move. All alteration materials or supplies must be removed from the highway and right-of-way immediately after the move.

Return Reverse Route

Also referred to as Return Route and RRR. On the online permitting system, a route that is permitted to return to its origin in the opposite direction.


Also called revise. A procedure to alter an active permit. If changes are made to a configuration affecting weights and spacings, or number of axles, a new permit is required.

Road Area Used

Also referred to as RAU or road used. A calculation used to determine when an over dimension load and/or vehicle configuration encroaches over the centerline on a two-lane roadway.


Also referred to as RBNT, rbnet or ARPS. The name used to describe MnDOT’s online permit routing system.


Seasonal Load Limits (SLL)

Axle weight restrictions or increases which are enforced during specific times of the year when pavement strength is affected by the climate conditions. See Seasonal Load Limits for details.


A self-propelled vehicle is equipment that powers its own movement. Examples: mobile crane, concrete pumpers, drill rig, etc.

Side overhang

Although centered loading is preferred, offset loading is permissible. When offset loading is necessary, the majority of the overhang should be on the right side (shoulder side) of the vehicle, as much as practical.


Signs must be legible. Between sunset and sunrise, signs must be lighted or of reflective material. If sign material is flexible, it must be pulled taut or mounted to a flat surface.

  • Permitted vehicle requirements – when loaded width exceeds 12' or when vehicle combination length exceeds 95', “Oversize Load” signs and warning lights must be displayed on the front and rear of the permitted vehicle, with lights at least 20" above the ground. Signs must have 10” series C black 1-3/8” letters on a yellow background and measure at least 18” high x 72” long.
  • Escort vehicle requirements – when escort vehicles are required, the vehicle must display either a “Long Load” or “Wide Load” sign mounted on top of the escort vehicle. These signs must have 8” series C 1-1/8” black lettering on a yellow background and measure at least 12” high x 60” long. Signs cannot extend beyond the fender line on the driver’s side or more than six inches beyond the fender line on the passenger side of the vehicle.

Single Trip

7 day permit for 1 move for a specific load, vehicle configuration weight and spacings, and route.


Tire limit

Under permit, tire weights cannot exceed 600 pounds per inch of tire width, or the manufacturer’s recommended tire load; whichever is less.

Trip log

Logbook of movement for an oversize / overweight load on an annual permit.

Tire weight limits

Total weight allowed on any vehicle wheel while operating on Minnesota streets and highways. See Minnesota Statutes 169.823.

Trunnion or dual lane loading

Eight tires on one axle.


USDOT number

A unique identification number that the United States Department of Transportation assigns to companies that operate commercial vehicles transporting passengers or hauling cargo in interstate commerce.


Vehicle breakdown

In the event of a vehicle breakdown, the vehicle must be moved as far off the roadway as practical. Warning devices shall be placed around the vehicle as required by law to notify other motorists of a hazard.


Used with custom routing and return routing, a VIA line is used to add state roads to your desired route. In general, when entering data into VIA, preset your operation to I provide route/custom routing.

VIN (Vehicle Identification Number)

On the online permitting system, enter the last six digits of a VIN number for applications requiring this information for unit one.



Online process that allows commercial carriers applying for oversize / overweight permits in both Minnesota and Wisconsin to fill out one application and receive a permit from each state. The appropriate application data is sent to each individual state for processing as if the carrier made a separate application with both Minnesota and Wisconsin. The intent is to offer an efficient method of applying for permits and reduce the time a carrier spends in separate transactions.