Which Maryland agency licenses HVAC contractors and administers the HVAC Master exam?

• A. Maryland Department of Commerce
• B. Maryland Board of Home Improvement Contractors
• C. Maryland Department of Labor, Licensing and Regulation (DLLR), Board of Heating, Ventilation, and Air Conditioning Contractors
• D. Maryland Department of Public Safety and Correctional Services

Answer: (C)

In Maryland, HVAC contractor licensing and the HVAC Master exam are handled by the Maryland Department of Labor, Licensing and Regulation (DLLR) through the Board of Heating, Ventilation, and Air Conditioning Contractors. This board is the designated authority for licensing HVAC contractors and administering the Master exam, ensuring that those working in the field meet the required competencies and standards. The other agencies shown do not license HVAC contractors or administer the Master exam: they handle different scopes such as general business development, home-improvement licensing, or safety and enforcement, rather than specialized HVAC licensure.