Wyoming Department of Transportation

International Registration Plan (IRP)

International Registration Plan (IRP)


Apportioned – registration/plates

Registrant from non-member jurisdiction
IRP is a method of registering fleets of vehicles that travel in two or more member jurisdictions. Most U.S. states and Canadian provinces are members of the plan.

Apportionable Vehicle means (except as provided below) any power unit that is used or intended for use in two or more member jurisdictions and that is used for the transportation of people for hire or designed, used or maintained primarily for the transportation of property, and:
  • has two axles and a gross vehicle weight or registered gross vehicle weight in excess of 26,000 pounds (11,793.401 kilograms), or
  • has three or more axles, regardless of weight, or
  • is used in combination, when the gross vehicle weight of such combination exceeds 26,000 pounds (11,793.401 kilograms).
Recreational vehicles, vehicles displaying restricted plates, SUV's, passenger vans and government-owned vehicles are not apportionable vehicles.
Trucks or truck tractors, or the power units in a combination of vehicles having a gross vehicle weight of 26,000 pounds or less, and buses used in the transportation of chartered parties are not required to register; however, they may be registered under the Plan at the option of the Registrant.
Base Jurisdiction means the member jurisdiction, selected in accordance with Section 305, to which an applicant applies for apportioned registration under the plan or the member jurisdiction that issues apportioned registration to a registrant under the plan.  Refer to basing requirements.
Identification Plates and Cab Cards
The base jurisdiction, after receiving its proportionate fees, must supply the necessary identification plates. The base jurisdiction must also prepare cab cards, listing on the front:
  • The jurisdictions where the vehicles are proportionally registered.
  • The weight (shown in pounds for states and in kilograms for provinces) for vehicles registered.
  • And other necessary information in each of the jurisdictions.
  C. Registrant from Non-Member Jurisdiction
  •  Alaska
  • Canadian provinces not currently in IRP
A person whose only established place of business is in a jurisdiction that is not a member of IRP may until such time as this jurisdiction becomes a member of IRP declare as its base jurisdiction the member jurisdiction in which it expects to operate the greatest distance in the first year of operation as a registrant. A member jurisdiction that has received an application for registration under this subsection may reject the application for just cause. Once the jurisdiction in which the registrant is based becomes a member of IRP, that registrant must license through its base jurisdiction.
For more information call 307-777-4829.
Trip Permit information can be found  here .  Click on trip permits for more information.

Up-to-date changes to the IRP Plan can be found at the IRP Web site . 

Need a DOT number? Visit the Federal Motor Carrier Services .  

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