National
North American Technician Excellence (NATE)
http://www.natex.org/
Certifications in:
- Air Conditioning
- Air Distribution
- Heat Pumps (Air-to-Air)
- Gas Heating
- Oil Heating
- Hydronics Gas
- Hydronics Oil
- Light Commercial Refrigeration
- Commercial Refrigeration
- Ground Source Heat Pump Loop Installer
HVAC Excellence
http://www.hvacexcellence.org/
- Heating, Electrical, Air Conditioning Technology (H.E.A.T.)
- Heating, Electrical, Air Conditioning Technology (H.E.A.T.) PLUS
- Employment Ready Certifications
- Specialty Certifications
- Professional Level Certifications
- Master Specialist Certifications
- Certified Subject Matter Educator
Environmental Protection Agency (EPA)
http://www.epa.gov
- Section 608 & 609 certifications
Building Performance Institute (BPI)
http://www.bpi.org/
Certifications in:
- Air Conditioning and Heat Pumps
- Heating
- Envelope Professional
Welding
American Welding Society
https://www.aws.org/
Certifications in:
- Certified Welder
- Associate Welding Inspector
- Welding Inspector
- Senior Welding Inspector
- Resistance Welding Technician
- Radiographic Interpreter
- Welding Supervisor
- Welding Engineer
- Robotic Arc welding
