(1) This chapter shall not apply to: Household appliances;
(2) American Gas Association-approved unvented space heaters;
(3) Factory assembled air-cooled, self-contained refrigeration equipment of one and one-half horsepower (1.5 h.p.) or less and which have no refrigerant lines extending beyond the cabinet enclosure;
(4) Factory assembled air-cooled, self-contained, window-type air conditioning units of thirty-six thousand (36,000) BTUH or less not connected to ducts;
(5) Window, attic, ceiling, and wall fans in residences; or
(6) Poultry operations whether engaged in hatching, primary processing, or further processing of chicken, turkey, or other fowl.
(7) This chapter shall not apply to a person who: Performs HVACR work in an existing building or structure owned and occupied by him or her as his or her home;
(8) Performs HVACR work in an existing building or structure owned or occupied by him or her on his or her farm;
(9) Performs work for public utilities on construction, maintenance, and development work that is incidental to his or her business;
(10) Performs work on motor vehicles;
(11) Is an architect or registered engineer who designs HVACR systems for design criteria only;
(12) Is an employee of a hospital and performs HVACR work that is incidental to the hospital's operation;
(13) Installs or does maintenance work on a gas-fired floor furnace, wall furnace, or unit heater, if the person is licensed pursuant to § 17-38-301 et seq. and the work is performed within the limitations of the person's license; or
(14) Is a pipefitter, welder, well driller, sheet metal worker, or plumber working under a Class A, Class B, Class D, or Class E licensee and who is enrolled in or has satisfactorily completed an apprenticeship training program approved by the State of Arkansas in his or her respective trade, and whose work is performed within the limitations of the person's license.
(15) The provisions of this chapter shall not apply to a person or public entity serving or repairing its own HVACR system by its own personnel specifically trained for such service or repair.
(16) Any person exempt under this section is required to conform to rules on the performance of HVACR work as well as obtaining local permits and inspections as may be required by local ordinance.