Earn a CHD Certification

The CHD certification, an ANSI-Accredited Personnel Certification Program under ISO/IEC 17024 (#1139), validates competency to design HVAC systems to meet building/project requirements, including equipment, equipment sizing, load calculations, mechanical equipment room design, duct and piping design and layout, and develop HVAC plans for permit and construction.
NEW! CHD Study Guide
Exciting news! Through Sept. 30, use the Discount Code CERT25 to receive a 25% discount on certification application. Test at one of over 1,000 test center locations.