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Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors (HVACR)

License, Registration or Permit Renewal Dates
For those currently practicing on extended status,
your updated renewal date has been set to May 31, 2021.

Important COVID-19 Information for Customers
(Updated October 22, 2020)

The offices of the Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors are open and serving our customers through our online licensing resources, and via e-mail and telephone. To protect the health and safety of our customers and employees, walk-in assistance is not yet available. We can be reached using our contacts page for e-mail addresses and telephone numbers of individual staff members.

Coronavirus/COVID-19 Information

The Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration (HVACR) Contractors licenses and regulates individuals who provide commercial and residential HVACR services pursuant to the provisions of Business Regulation Article 9A, Annotated Code of Maryland, and COMAR 09.15. The Board is also authorized to adopt applicable regulations for the provision of HVACR services, including codes and minimum standards for the installation, alteration, remodeling, maintenance and repair of heating, ventilation, air conditioning, and refrigeration systems. The Board investigates complaints against licensees and complaints related to unlicensed practice. The Board may pursue disciplinary charges against an individual for violations of applicable laws or regulations, conduct hearings and, if warranted, impose administrative sanctions including suspension or revocation and/or assess a civil penalty up to $5,000 for each violation of a law and regulation.

News and Updates

New! Exam candidates: The testing vendors that administer licensing exams for our boards and commissions are open and scheduling exams. Check the status of your testing center directly for updated scheduling and exam information. (Updated March 4, 2021)

Boiler and Pressure Vessel Safety

Maryland Apprenticeship and Training

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Learn more about Be SMART, an easy finance program for energy saving upgrades to homes, apartment properties and businesses.

Proposed Regulations Currently Open for Public Comment

To register your comments with the Board, send your letter to the Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors, 500 N. Calvert Street, Room 481, Baltimore, MD 21202; call 410-230-6231; e-mail DLOPLHVACR-LABOR@maryland.gov; or fax 410-244-0977.

Contact the BoardContact the Board
Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors
500 North Calvert Street, Room 481
Baltimore, Maryland 21202-3651
410-230-6231
Fax: 410-244-0977
e-mail: DLOPLHVACR-LABOR@maryland.gov