The Simple Rule
You only need permits for the credentials you’re missing:
- Trip Permit → replaces IRP (registration)
- Fuel Permit → replaces IFTA (fuel tax license)
When You Need BOTH
You must carry both a trip permit and a fuel permit if:
- Your truck is not registered under IRP, and
- Your truck does not have an International Fuel Tax Agreement license/decals
In this case, Florida requires:
- A trip permit to legally operate (registration compliance)
- A fuel permit to legally pay fuel taxes
This is common for:
- New carriers
- One-time trips
- Trucks not fully set up for interstate operations
Florida even offers a combined trip/fuel permit option for this scenario.
When You Need ONLY ONE
Only a Trip Permit
If you:
- Have valid IFTA credentials, but
- Do not have IRP registration
You only need a trip permit.
Only a Fuel Permit
If you:
- Have valid IRP registration, but
- Do not have IFTA
You only need a fuel permit.
When You Need NEITHER
You don’t need either permit if:
- You are fully registered under IRP, and
- You have a valid IFTA license and decals
In that case, you’re already compliant for interstate travel.
Important Notes
- Both permits are typically valid for 10 days and must be obtained before entering Florida.
- Operating without required permits can lead to fines and forced permit purchases at roadside inspections.
Bottom Line
- You don’t automatically need both permits.
- You only need both if you’re missing both IRP and IFTA.
- Otherwise, you just replace whichever credential you don’t have.