DLLR's Division of Occupational and Professional Licensing

 

Apply for License/Permit - Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors

 

Master: A master license entitles the licensee to provide installation and maintenance services in all of the areas of HVACR work. License Requirements

Master Restricted: A Master Restricted License entitles the licensee to provide installation and maintenance work in one or more areas of HVACR work. The categories of HVACR work are Air Conditioning, Full Heating, Forced Air, Heating, Hydronic Heating, Refrigeration and Ventilation. License Requirements

Limited Contractor: A Limited Contractor license entitles the licensee to exclusively maintain and repair one or more HVACR systems. The categories of HVACR work are Air Conditioning, Full Heating, Forced Air Heating, Hydronic Heating, Refrigeration and Ventilation. License Requirements

Journeyman: A Journeyman license entitles the licensee to perform HVACR services while under the direction and control of a licensed contractor. License Requirements

Journeyman Restricted: A Journeyman restricted license entitles an individual to perform one or more specialized HVACR services while under the direction and control of a licensed contractor. License Requirements

Apprentice: Anyone who is entering the trade of HVACR work must obtain an apprentice license.  There are no prerequisites for an apprentice license. Online license application.