National Fire Protection Association

International Code Council

NATE – North American Technican Excellence

Mechanical Contractors Assocation of America

Air Conditioning Contractors of America

American Society of Heating, Refrigeration and Air-Conditioning Engineers

Ferris State University HVACR

State Specific Links

North Carolina

NC State Board of Examiners

NC The State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors

Georgia

GA State Board of Examiners