Trip permit vs IRP apportioned plate
A trip permit is a state-issued, single-trip authorization for commercial vehicle operation in a state where the carrier doesn't hold IRP apportioned plates. An IRP apportioned plate is a multi-state, year-round registration covering the carrier's entire IRP fleet across all member jurisdictions. Trip permits suit occasional cross-border operations; IRP apportioned plates are the operational default for regular interstate work.
Side-by-side comparison
| Dimension | Trip Permit | IRP Apportioned Plate |
|---|---|---|
| Coverage | One state, one trip | All IRP states, year-round |
| Cost per trip | $25-$150 per state | Nearly $0 (already covered by registration) |
| Annual cost | Scales with trip count | Apportioned by miles per state |
| Setup time | Hours per trip | Multi-week initial registration |
| Best for | 1-5 cross-border trips/year | Regular interstate operation |
| Renewal | None — single-use | Annual on IRP fleet anniversary |
When trip permits make sense
Trip permits are the right call for occasional cross-border operations — a carrier running primarily intrastate work with rare interstate trips. The per-trip cost ($25-$150 per state) is small for low-volume operation; the carrier avoids the multi-week IRP registration setup and the apportioned-plate annual fees. For a carrier running 1-3 cross-border trips per year, trip permits are dramatically cheaper than IRP.
Trip permits also work for one-off scenarios where IRP wouldn't apply — moving a newly-purchased truck back to the carrier's base state for registration, hauling a non-fleet vehicle on a special move, or running fuel-tax-exempt vehicles that don't fit IFTA. The trip permit covers the specific trip without committing to year-round multi-state registration.
When IRP plates are the right call
IRP apportioned plates are the operational default for any carrier running regular interstate freight. The plates authorize the vehicle to operate in every IRP member jurisdiction (the 48 contiguous US states plus most Canadian provinces) for the full registration year. The annual cost is calculated based on per-state mileage apportionment — a carrier running 80% of miles in Texas pays Texas 80% of the apportioned registration fee.
For a carrier running 5+ interstate trips per year, IRP almost always wins economically. The per-trip cost of IRP is essentially zero (the registration is already paid annually); trip permits at $25-$150 per state per trip stack to thousands of dollars per year for a regular interstate carrier. Most carriers transitioning from intrastate to interstate operations register for IRP within the first 6 months as soon as the trip count starts to make IRP economical.
How they interact with oversize/overweight permits
Neither trip permits nor IRP apportioned plates substitute for oversize/overweight permits. A carrier running an oversize load on a trip permit also needs a separate oversize permit from the state. A carrier running an oversize load on IRP apportioned plates also needs the oversize permit. The size/weight permits are independent of the registration framework — they authorize the specific load configuration, not the vehicle's general operation.
For multi-permit operations, the permits stack. A carrier running a one-off oversize load to a state where they don't hold IRP plates might carry: trip permit (registration), oversize permit (load configuration), pilot car (escort), and possibly a route survey (for non-standard routing). Each is a separate document with separate fees and separate state DOT review.
Frequently asked questions
Can I use trip permits for all my interstate work?
Operationally yes, economically no for any sustained interstate volume. Trip permits cost typically $25-$150 per state per trip; for a carrier running regular interstate freight, the per-trip cost stacks quickly. IRP apportioned plates cover unlimited trips for the registration year and are dramatically cheaper for active interstate operations.
When does IRP make economic sense over trip permits?
Roughly at 5-10 interstate trips per year. Below that volume, trip permits are cheaper. Above that volume, IRP apportioned plates are cheaper because the per-trip cost approaches zero. Most carriers running regular interstate freight maintain IRP plates by default.
Do trip permits cover oversize/overweight?
No. Trip permits authorize the vehicle to operate in the state but do not authorize oversize or overweight movement. A carrier running an oversize load on a trip permit also needs a separate oversize/overweight permit from the state. The two permit types stack.
Related comparisons
Trip permits — fast and per-state
FastPermit handles trip permits for occasional cross-border operations. Each permit covers one state for one trip; multi-state moves stack permits.
Get a trip permit