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! In addition to sitting for this exam at any one of over 1,000 test center locations worldwide, candidates may also sit for this exam during the ASHRAE Winter Conference on Feb. 3 @ 4:00 p.m. in Las Vegas! Just select "Las Vegas" as your "Exam Location" when applying.