A federally required certification under Section 608 of the Clean Air Act for technicians who maintain, service, repair, or dispose of equipment that could release ozone-depleting or substitute refrigerants into the atmosphere. The certification is administered by EPA-approved testing organizations and is required to legally purchase most regulated refrigerants and perform covered HVAC/R service work in the United States.
Who it's for
HVAC and refrigeration technicians, apprentices, and anyone who services, maintains, repairs, or disposes of stationary refrigeration and air-conditioning equipment. The certification is divided into four categories: Type I (small appliances), Type II (high-pressure appliances), Type III (low-pressure chillers), and Universal (all three combined).
What's covered
- Core Section — required for every certification type, covering the Clean Air Act's refrigerant regulations, recovery vs. recycling vs. reclamation, venting prohibitions, and recordkeeping
- Type I & Type II Systems — small appliance recovery requirements and high-pressure system service, common refrigerants, and safety considerations
- Type III & Recovery Equipment — low-pressure chiller-specific hazards, required vacuum levels, and recovery equipment standards
What to expect
Candidates must pass the Core section plus the section(s) corresponding to the certification type they're pursuing (Type I, Type II, Type III, or all three for Universal certification). The exam is administered by EPA-approved certifying organizations and can typically be taken in person or online through a proctored format, with no specific field experience prerequisite required to sit for the exam itself.
How to prepare
Because the Core section applies to every certification type, building a solid understanding of the venting prohibition, recovery/recycling/reclamation distinctions, and recordkeeping requirements pays off across the entire exam regardless of which type sections you're pursuing. The Type-specific sections reward understanding why different equipment categories (small sealed appliances, high-pressure systems, low-pressure chillers) require different recovery procedures and vacuum levels, rather than memorizing numbers in isolation.
Certification details
- Administering body: U.S. Environmental Protection Agency (EPA), Section 608 of the Clean Air Act, with exams delivered through EPA-approved certifying organizations.
- Eligibility: No specific prerequisite experience required to sit for the exam.
- Exam format: Multiple-choice, covering the Core section plus the Type I, Type II, and/or Type III sections relevant to the certification sought.
- Validity: EPA Section 608 certification does not expire once earned.
- Requirement: Certification is generally required to purchase most regulated refrigerants and to legally perform covered service work on regulated equipment.