Maryland Code, Public Safety § 12-502

(1) the State Board of Plumbing to adopt and enforce the State Plumbing Code under the Maryland Plumbing Act,  1 Title 12 of the Business Occupations and Professions Article;

(2) the State Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors to adopt and enforce the State Heating, Ventilation, Air-Conditioning, and Refrigeration Code under the Maryland Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors Act,  2 Title 9A of the Business Regulation Article;

(3) the Commissioner of Labor and Industry to adopt and enforce standards for elevator safety under Subtitle 8 of this title;

(4) the State Fire Prevention Commission to enforce the Electrical Code under Subtitle 6 of this title; or

(5) the Public Service Commission to enforce the Energy Code  3 defined under the Energy Conservation Building Standards Act, Title 7, Subtitle 4 of the Public Utilities Article.