International Registration Plan

The International Registration Plan (IRP) is a registration reciprocity agreement among the states of the U.S. and provinces of Canada, providing the payment of license fees on the basis of total distance operated in all jurisdictions. Each carrier is required to pay registration fees for the state or provinces where they will travel and conduct business. IRP allows the carrier to submit a single application to a single base state for all jurisdictions for which the carrier operates.
Without IRP, a carrier would have to submit multiple registration applications; one for each jurisdiction in which they travel. Colorado offers multiyear registrations for the commercial trailers that are Tax Class A vehicles registered in IRP