All monies deposited into the State Airports Development Fund shall be expended for the purposes for which the monies are allocated in accordance with this article. In addition to the State Airports Development Fund, other special funds shall be created into which shall be deposited any and all federal grants-in-aid funds which may be allocated to the state for airport development or other aeronautical purposes, which funds shall be handled and accounted for in the manner prescribed by the United States government and its appropriate agencies.
Ala. Code § 23-1-365 (1975)