EPA 608 certification explained: types, exam and who needs it
Updated · 5 min read · By the Elevate admissions team
Under Section 608 of the Clean Air Act, technicians need EPA 608 certification to maintain, service, repair or dispose of equipment that could release refrigerant. There are four levels: Type I covers small appliances, Type II high-pressure systems, Type III low-pressure systems, and Universal covers all three. You take the exam through an EPA-approved certifying organization.
Why it matters
Refrigerants can harm the ozone layer and the climate, so the EPA requires anyone who opens a refrigerant circuit to be certified. In practice, nearly every HVAC technician job requires EPA 608. Many employers expect Universal certification before your first day in the field.
The four certification types
- Type I covers servicing small appliances, such as household refrigerators, window AC units and vending machines.
- Type II covers servicing or disposing of high- and very-high-pressure appliances, including most residential and commercial AC and heat pump systems.
- Type III covers servicing or disposing of low-pressure appliances, such as chillers.
- Universal covers all three types.
Certification is by type of appliance, not by type of refrigerant.
How the exam works
Every candidate takes a Core section, plus the section for each type they want. You test through an EPA-approved certifying organization. For Type II, Type III and Universal, the exam must be proctored and closed-book. Once you pass, the certification does not expire.
How to prepare
The Core section covers refrigerant regulations, the ozone layer, recovery, recycling, safety and shipping. The type sections cover leak repair rules, recovery techniques and equipment specific to each appliance class. Hands-on time with real systems makes the theory much easier to remember.
Elevate's 6-week HVAC Technician program includes EPA 608 prep alongside hands-on labs at our Phoenix campus. It covers electrical troubleshooting, installation and maintenance. Elevate lists starting pay of $27.80/hour for HVAC Installers and $29.96/hour for HVAC Technicians, based on public Indeed data.
The Elevate program
Frequently asked questions
Which EPA 608 certification should I get?
Most HVAC employers prefer Universal, which covers Type I, II and III, because technicians work on many kinds of equipment.
Does EPA 608 certification expire?
No. Once earned, Section 608 technician certification does not expire.
Is the EPA 608 exam open book?
Type II, Type III and Universal exams must be proctored and closed-book. Type I tests may be offered unproctored, for example online, depending on the certifying organization.
Do I need EPA 608 to work in HVAC?
If you'll handle refrigerants, which most HVAC technicians do, the Clean Air Act requires Section 608 certification.