Maryland Mechanical Licensing Boards

State Licensing Agency

Examination Provider

License Verification

Trade Group	State Licensing Agency	Exam Provider
HVACR	Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors	PSI Exams
Plumbing	Maryland Board of Plumbing	PSI Exams
Electrical	Maryland State Board of Electricians	PSI Exams
Stationary Engineers	Maryland Board of Stationary Engineers	PSI Exams
Elevator Safety	Maryland Elevator Safety Review Board	PSI Exams