Special Fuel Permits for Kentucky Trucking Companies

Jan. 17, 2026, 5:45 p.m.
A Special Fuel Permit allows commercial motor carriers to legally purchase and use special fuels (like diesel, biodiesel, or alternative fuels) in Kentucky without being registered under IFTA (International Fuel Tax Agreement). These permits are required for trucks that operate in interstate or intrastate commerce and meet certain weight or axle thresholds.
Special Fuel Permits for Kentucky

Who Needs a Special Fuel Permit?

You need a Kentucky Special Fuel Permit if your vehicle:

  • Operates on Kentucky public highways

  • Uses special fuels (diesel, biodiesel, natural gas, propane)

  • Has two axles and a gross vehicle weight (GVW) over 26,000 lbs, or

  • Has three or more axles regardless of weight

  • Is not registered under IFTA

If your trucking company has IFTA credentials, you generally do not need a Kentucky Special Fuel Permit, as fuel taxes are already apportioned.

 How to Apply for a Special Fuel Permit in Kentucky

1. Gather Required Information

Prepare the following:

  • Business legal name and address

  • USDOT number (if applicable)

  • Vehicle information (VIN, GVW, axle configuration)

  • Fuel type(s) used

  • Expected mileage in Kentucky

2. Determine Permit Type

  • Trip Permit: For one-time or short-term trips

  • Annual Permit: For regular operations within Kentucky

3. Submit the Application

Kentucky special fuel permits can be obtained via:

4. Pay Fees

Fees depend on:

  • Vehicle type and GVW

  • Number of axles

  • Permit type (single trip vs annual)

Exact fees are published annually by KYTC.

5. Receive Your Permit

  • The permit will list vehicle details, allowed fuel types, and validity period

  • Keep the permit in the vehicle at all times while operating in Kentucky

 Rules and Restrictions

  • Trip permits are valid for the number of days specified on the permit

  • Fuel purchases must comply with state tax reporting

  • Interstate carriers may still need IFTA registration if operating in multiple states

  • Penalties exist for operating without a valid permit

 Tips for Trucking Companies

  • Always check permit expiration dates before operating

  • Keep detailed fuel purchase records for audits

  • Consider an annual permit if you frequently enter Kentucky

  • Verify whether your fleet qualifies for IFTA, as it may be more efficient

 Summary Table

Criteria Special Fuel Permit Requirement
Vehicle GVW >26,000 lbs or 3+ axles
Interstate operation Yes, if not IFTA registered
Fuel type Diesel, biodiesel, natural gas, propane
Permit types Trip or Annual
Application Online at https://www.kentuckytruckingonline.com/ or (502) 842-1467
Validity Specified on permit, must be carried in vehicle

 

 

Special Fuel Permits for Kentucky