(a) This part shall not apply to:

1. (1) Household appliances;
2. (2) American Gas Association (AGA)-approved unvented space heaters;
3. (3) Factory-assembled, air-cooled, self-contained refrigeration equipment of one and a half horsepower (1.5 h.p.) or less and which has no refrigerant lines extending beyond the cabinet enclosure;
4. (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. (5) Window, attic, ceiling, and wall fans in residences; or

6. (6) Poultry operations whether engaged in hatching, primary processing, or further processing of:

   1. (A) Chicken;
   2. (B) Turkey; or
   3. (C) Other fowl.

(b) This part shall not apply to a person who:

1. (1) Performs HVACR work in an existing building or structure owned and occupied by him or her as his or her home;
2. (2) Performs HVACR work in an existing building or structure owned or occupied by him or her on his or her farm;
3. (3) Performs work for public utilities on construction, maintenance, and development work, which is incidental to their business;
4. (4) Performs work on motor vehicles;
5. (5) Is an architect or registered engineer who designs HVACR systems for design criteria only;

6. (6)

   1. (A) Is an employee of a hospital and who performs HVACR work which is incidental to the hospital’s operation.
   2. (B) Items related to healthcare facilities shall continue to be governed by the rules pertaining to healthcare facilities licensed under Acts 1961, No. 414, as amended and administered by the Department of Health, Division of Health Facilities Services;
7. (7) Installs or does maintenance work on a gas-fired floor furnace, wall furnace, or unit heater, if the person is licensed pursuant to Arkansas Code § 17-38-301 et seq. and the work is performed within the limitations of the person’s license; or
8. (8) Is a pipefitter, welder, well driller, sheetmetal 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 the work is performed within the limitations of the person’s license.