State offices and all DLLR physical locations will be closed to the public December 24 & December 25, 2014. However, Unemployment Insurance telephone and Web operations WILL be available on Wednesday, December 24.

DLLR's Division of Occupational and Professional Licensing


News and Information - Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors


COMAR 09.15.05- Compliance with International Mechanical Code
On May 8th, 2013, the State Board of Heating Ventilation Air-Conditioning and Refrigeration Contractors adopted amendments to Regulations .01 - .03 under COMAR 09.15.05 Compliance with International Mechanical Code. This action, which was proposed for adoption in 40:3 Md. R. 240-241, has been adopted as proposed. View the regulations.

Meeting Minutes