IRP Guide for Trucking Businesses

Who This Applies To

• Interstate motor carriers with qualified commercial vehicles — generally over 26,000 lbs GVWR or three or more axles — that operate across multiple IRP member jurisdictions.
• Fleet managers adding, removing, or substituting vehicles on an IRP account mid-year through supplement filings, and dispatchers who need to know when a supplemented vehicle has valid credentials.
• Owner-operators checking whether their truck is covered under the motor carrier's IRP account or whether they need to open a separate IRP account under their own authority.
• New carriers estimating jurisdiction distance for a first IRP registration before actual trip records exist.

What To Verify

• That IRP registration is managed by the base-jurisdiction DMV or equivalent office — not the IFTA office — and that the two accounts may sit with different agencies even in the same state.
• The cab card in each vehicle lists all IRP member jurisdictions, matches the current plate and VIN, and reflects the current registration year.
• IRP renewal timelines for the base jurisdiction. Renewal is not automatic; operating on an expired registration requires purchasing trip permits in every jurisdiction the vehicle enters.
• How the base jurisdiction handles mid-year vehicle additions. A vehicle dispatched before a supplement is processed may not have valid credentials for that trip.

Step-by-Step Overview

1. Confirm the fleet's base state is correct. IRP base jurisdiction must be a state where the business has an established place of business and where the fleet actually operates.
2. Track actual distance by jurisdiction for every vehicle throughout the registration year. IRP renewal fees are calculated from prior-year actual distance — not from estimates, not from last year's figures.
3. Review each cab card when it is issued. Check that the VIN, plate, unit number, and registration year are correct before putting the vehicle into service.
4. File IRP renewal with actual prior-year distance data and pay apportioned fees before the registration expires. Running on an expired cab card, even by a day, requires trip permits in every jurisdiction.
5. Keep copies of cab cards in the dispatch office and the issued originals in the vehicle. When a vehicle renews or supplements, pull the old card out of the cab.

Common Mistakes

• Dispatching a vehicle before a supplement is processed after adding it to the IRP account. The cab card doesn't exist until the supplement clears.
• Leaving last year's cab card in the cab after renewal. The current-year cab card is the valid credential; the prior-year one is not.
• Confusing IRP renewal with IFTA renewal. Both typically fall in the same period and both involve the same base state, but they are separate programs administered by different agencies.
• Using estimated distance at renewal instead of actual trip-level records. Estimated figures that don't match audit support result in back-fees and sometimes penalties.
• Reconstructing a full year of jurisdiction miles at renewal time from summary sheets. Trip-level records are what auditors ask for — the summary should be built from them, not instead of them.