Ala. Code § 4-6-5

Prior to the initial zoning of any airport hazard area under this chapter, the political subdivision which is to adopt the regulations shall be authorized to appoint an airport zoning commission consisting of five members, each to be appointed for a term of three years, or may designate any existing planning commission to recommend the boundaries of the various zones to be established and the regulations to be adopted therefor. Such commission shall make a preliminary report and hold public hearings thereon before submitting its final report, and the legislative body of the political subdivision shall not hold its public hearings or take other action until it has received the final report of such commission.