Code of Alabama
Chapter 31 - Heating, Air Conditioning, and Refrigeration Contractors.
Section 34-31-28 - Examination for Certification; Registration; Eligibility; Further Testing, etc., by Localities Prohibited; Exemptions.

(a) All prospective certified contractors in this state desiring to qualify in accordance with the provisions of this chapter shall be required to stand for a written examination before the board. Any applicant failing to pass his or her first examination for a certificate shall be entitled to take any subsequent examination, either written or, upon request of the applicant, practical examination which is equivalent to the written examination, to be held within six months from the date of his or her first or latest unsuccessful examination.
(b) The board shall register every person who may apply for an apprentice heating, air conditioning, or refrigeration registration certificate upon forms provided by the board and upon payment of all prescribed fees.
(c) The board shall examine the character, fitness, and qualifications of every person who applies for a certified heating, air conditioning, or refrigeration contractor license upon forms prescribed by the board and upon payment of all prescribed fees.
(d) An applicant for examination for a heating, air conditioning, or refrigeration certified contractor license shall be eligible to stand for the examination if the applicant has held an apprentice registration, issued by this board, for two or more calendar years; or has completed 3,000 hours of coursework or experience, as defined by the board; or is a graduate of an approved heating, air conditioning, or refrigeration curriculum.
(e) All legal entities engaged in the refrigeration business for a period of two years prior to May 13, 2009, may apply to the board for a certified refrigeration contractor license without standing for a written examination. The applicant shall provide evidence of such experience to the board as promulgated in the rules of the board. An applicant who does not apply for such certification by December 31, 2011, must stand for the written examination.
(f) Counties, municipalities, or other local entities are hereby prohibited from requiring any further local testing or other requirements of certified contractors, subject to the payment of any applicable local privilege, license, or business fees or charges.
(g) Persons licensed by the Alabama Liquefied Petroleum Gas Board are exempt from this chapter pertaining to heating, air conditioning, and refrigeration when:
(1) Engaged in the installation, repair, or replacement of a liquefied petroleum gas appliance so long as the appliance is not connected to a refrigeration system, except that such persons may also engage in the replacement or repair of a liquefied petroleum gas central heating unit when it is combined with an air conditioning unit.
(2) Engaged in the installation of a venting system required for a vented-type liquefied petroleum gas appliance.
(h) This chapter does not apply to:
(1) An authorized employee of the United States, the State of Alabama, or any municipality, county, or other political subdivision, if the employee does not hold himself or herself out for hire or otherwise engage in contracting except in accordance with his or her employment.
(2) Any mobile home or manufactured structure that is installed, inspected, or regulated by the Alabama Manufactured Housing Commission; however, the repair, servicing of a heating and air conditioning system, or the installation of a new heating and air conditioning system in a previously inspected manufactured structure is subject to this chapter.
(3) Persons performing work on motor vehicles, residential refrigerators, or ice machines.
(4) Household appliances.
(5) Farm equipment.
(6) Poultry operations whether engaged in hatching, primary processing, or further processing of chicken, turkey, or other fowl.