Ala. Code § 40-17-166: Exemption of Certain Vehicles from Excise Tax.

Any vehicles of the classes described in Section 40-17-160 owned by the state, county, or any incorporated municipality or agency, or instrumentality thereof, or any vehicle not requiring a license plate or motor vehicle license, including but not limited to forklift trucks and agricultural vehicles, shall be exempt from any excise tax levied by the provisions of this chapter.