Ala. Code § 34-1A-8: General Applicability.

(a) This chapter and the rules and regulations promulgated pursuant to this chapter shall have uniform force and effect throughout the state. A municipality or county shall not enact an order, ordinance, rule, or regulation requiring a person or business entity to obtain a certification from the municipality or county, other than proof of a valid license issued by the board.

(b) This chapter shall not affect any general statute or municipal ordinance requiring a business license for a system installer.

(c) Nothing in this chapter limits the power of a municipality, a county, or the state to require the submission and approval of plans and specifications or to regulate the quality and character of work performed by contractors through a system of licenses, fees, and inspections otherwise authorized by law for the protection of the public health and safety.