Alternative Fuel Vehicle

An alternative fuel vehicle is one that is powered only by an alternative fuel. Arizona statute defines an alternative fuel as one of the following:

  • Electric
  • Natural gas / CNG or LPG
  • Hydrogen
  • Blend of 70 percent alternative fuel, 30 percent gasoline (unavailable in Arizona)
  • Solar

If a vehicle is converted to operate solely on alternative fuel, the Arizona Department of Environmental Quality must inspect the vehicle and issue an Alternative Fuel Certificate.

Reduced Vehicle License Tax

The vehicle license tax (VLT) for an AFV is changed to a rate of $4 per $100 of assessed valuation, which is determined by the following:

  • For the first year, the assessed value is 1-percent of the factory list price (FLP) of the AFV.
  • For subsequent years, the assessed value is depreciated 15-percent each year.
  • The minimum VLT for an AFV registration is $5.

To calculate the savings for an Alternative Fuel Vehicle, take the Vehicle License Tax due (for gasoline or diesel vehicles) and multiply it by 0.02381. The result is what you would have paid (or $5, whichever is higher).

HOV Lane Privileges

If you have a current AFV special plate, you can use the HOV freeway lanes at any time, regardless of the number of passengers. 


Hydrogen, solar and electric powered vehicles are exempt from all emissions testing requirements.

For more information contact the Arizona Department of Environmental Quality at 877.692.9227 or visit