For the purposes of this article, the following words have the following meanings:

(1) DEPARTMENT. The Alabama Department of Revenue.

(2) DIESEL FUEL. Any liquid that is advertised, offered for sale, or sold for use as or used as a motor fuel in a diesel-powered engine. Diesel fuel includes #1 and #2 fuel oils, kerosene, special fuels, and blended fuels which contain diesel fuel, but does not include gasoline or aviation fuel.

(3) DYED DIESEL FUEL. Diesel fuel that meets the dyeing and marking requirements of 26 U.S.C §4082.

(4) GASOLINE. Any product commonly or commercially known as gasoline, or any substitute therefor, regardless of classification, that is advertised, offered for sale, or sold for use as or used as fuel in an internal combustion engine, including gasohol and blended fuel which contains gasoline. Gasoline does not include aviation gasoline sold for use in an aircraft motor.

(5) KEROSENE. All grades of kerosene, including, but not limited to, the two grades of kerosene, No. 1-K and No. 2-K, commonly known as K-1 kerosene and K-2 kerosene, respectively, described in the American Society for Testing Materials Standard D-3699, in effect on January 1, 1999, and kerosene-type jet fuel described in the American Society for Testing Materials Standard D-1655 and military specifications MIL-t-5624r and MIL-t-83133d (grades jp-5 and jp8), and any grade described as kerosene or kerosene-type jet fuel by the Internal Revenue Code and administrative guidance promulgated thereunder.

(6) MOTOR FUEL. Gasoline and diesel fuel, but shall not include aviation fuel.

(7) PERSON. Any individual, firm, cooperative, association, corporation, limited liability corporation, trust, business trust, syndicate, partnership, limited liability partnership, joint venture, receiver, trustee in bankruptcy, club, society, or other group or combination acting as a unit.

(8) SPECIAL FUEL. Any liquid, other than gasoline, used or suitable for use as motor fuel in a diesel-powered engine or motor to propel any form of vehicle, machine, or mechanical contrivance, and includes products commonly known as biodiesel fuel. Special fuel does not include any petroleum product or chemical compound such as alcohol, industrial solvent, or lubricant, unless blended in or sold for use as motor fuel in a diesel powered engine.

(9) TAX. Any amount, including applicable penalty and interest, levied or assessed against a taxpayer and which the department or any county, municipality, or their designees are required or authorized to administer under the provisions of Alabama law.

(10) TAXPAYER. Any person subject to or liable for any local tax; any person required to file a return with respect to, or to pay, or withhold and remit any local tax or to report any information or value to the department, a county, municipality, or its designee; or any person required to obtain or holding any interest in any license, permit, or certificate of title issued by the department, a county, municipality, or its designee, or any person that may be affected by any act or refusal to act by the department, a county, municipality, or its designee, or to keep any records required by this article.