There is hereby exempted from the provisions of this article and from the computation of the amount of tax levied, assessed or payable under such article, the sale of all spirituous or vinous liquors sold by the Alabama Alcoholic Beverage Control Board to a certificated or licensed air carrier with a hub operation within this state, for use in conducting intrastate, interstate or foreign commerce for transporting people or property by air. For the purpose of this section the words "hub operation within this state" shall be construed to have all of the following criteria:
Ala. Code § 28-3-207 (1975)