| Washington Trip Permit | IRP Registration |
|---|---|
| Temporary operating permit | Permanent apportioned registration |
| Best for occasional trips | Best for frequent interstate travel |
| Valid for a limited number of days | Valid for the registration year |
| Purchased before each trip | Renewed annually |
| No apportioned registration required | Covers multiple jurisdictions |
Washington Trip Permit vs IRP Registration-What's the Difference?
June 26, 2026, 11:54 a.m.
If you're operating a commercial truck in Washington, you've probably heard about Washington Trip Permits and IRP Registration. While both allow commercial vehicles to operate legally on Washington highways, they serve different purposes.