(2)__Six months of licensed practical experience and completion of a heating, cooling and air distribution technician course at a Maine community college, career and technical education center or career and technical education region or a comparable institute from Maine or another state consisting, at a minimum, of 160 hours of study, of which at least 75 hours are made up of laboratory work on heating, cooling and air distribution equipment and related systems; or

(3)__Successful completion of a minimum one-year accredited heating course at a Maine community college consisting, at a minimum, of 320 hours of study, of which at least 150 hours are made up of laboratory work on heating, cooling and air distribution equipment and related systems.

An out-of-state applicant must present satisfactory evidence to the board of experience in installing, cleaning, servicing, altering and repairing heating, cooling and air distribution equipment.

B.__For a master heating, cooling and air distribution technician license, a person must present to the board satisfactory evidence of a total of 4 years' licensed practical experience as an apprentice heating, cooling and air distribution technician and a journeyman heating, cooling and air distribution technician and evidence that the licensed practical experience for at least 2 of those 4 years was as a licensed journeyman heating, cooling and air distribution technician, or fulfill other such requirements as the board may establish.__Courses approved for a journeyman license may not be applied toward the licensing requirements for a master.__An out-of-state applicant must present satisfactory evidence to the board of experience in installing, cleaning, servicing, altering and repairing heating, cooling and air distribution equipment.

2.__Apprentice.__The board may issue an apprentice license without examination to any person who applies and submits a fee as adopted by the Director of the Office of Licensing and Registration within the Department of Professional and Financial Regulation by rule.__Any such person employed by, or under the direct supervision of, a master licensee must apply for an apprentice license immediately upon employment or immediately