What is EPA 608 certification?
It’s proof that you passed an EPA-approved test on handling refrigerants safely. EPA’s rules call you a technician if your work could release refrigerant: attaching or removing hoses and gauges, adding or removing refrigerant, adding or removing components, or cutting a refrigerant line. Painting a unit, rewiring an outside electrical circuit or tightening nuts and bolts doesn’t count. Installers, contractor employees, in-house maintenance staff and equipment owners can all be technicians. Servicing car air conditioners for pay needs Section 609 certification instead.
Which EPA 608 type do I need?
It depends on the equipment. Type I covers factory-sealed small appliances with 5 pounds of refrigerant or less, like window units and household refrigerators. Type II covers medium-, high- and very high-pressure equipment such as split systems, heat pumps and supermarket refrigeration. Type III covers low-pressure equipment, mainly chillers. Universal covers all three. You can only buy refrigerant for the appliances your certification covers.
Does EPA 608 certification expire?
No. EPA says Section 608 credentials don’t expire, and there’s no renewal. EPA can suspend or revoke a certificate if you break the rules or can’t show it the right recovery procedures, and it has kept the right to bring in recertification later through a notice in the Federal Register. It hasn’t done that.
What score do you need to pass the EPA 608 test?
EPA’s rules set the passing score at 70 percent for the closed-book Type I, Type II, Type III and Universal tests, and 84 percent for a Type I test in the mail-in format. The Air Conditioning Contractors of America (ACCA) and Mainstream Engineering grade Core and each type as separate 25-question sections. ACCA asks for 18 to 25 right on each section, and Mainstream gives its pass mark as 72 percent, or 18 of 25: 17 right would be 68 percent, just under EPA’s 70. At ACCA, a type section counts only once you’ve passed Core.
Do you need EPA 608 certification to buy refrigerant?
Yes, with a few exceptions. Since January 1, 2018 the sales restriction covers hydrofluorocarbons (HFCs) such as R-410A as well as ozone-depleting refrigerants like R-22. A seller may sell to you if you’re certified or if your employer shows written proof that it employs at least one certified technician. Section 609 technicians can buy motor vehicle refrigerant but not refrigerant for stationary equipment. Small cans of 2 pounds or less of car air-conditioning refrigerant with a self-sealing valve can still be sold to anyone.
Is there a separate R-410A certification?
Not from EPA. EPA requires Section 608 certification for the type of appliance, whatever refrigerant it uses, and has no certification just for R-410A. Some trade schools offer R-410A classes and certificates, but EPA says they aren’t equivalent to Section 608. Installing an R-410A mini-split still needs Section 608 certification if you add or remove refrigerant or connect pre-charged lines.
Can I work on equipment before I’m certified?
Only as a registered apprentice or a student. An apprentice registered with the US Department of Labor’s Office of Apprenticeship, or a state council it recognizes, can work under the close and continual supervision of a technician certified for that equipment, for up to two years from registering. Students may work on equipment in classroom or lab coursework. Other on-the-job training counts as service work and needs certification.
What changes for refrigerant technicians in 2027 and later?
The certification rules stay the same; the new dates come from EPA’s American Innovation and Manufacturing (AIM) Act rules in 40 CFR Part 84. By January 1, 2027, owners of commercial or industrial process refrigeration systems installed from 2017 through 2025 that hold 1,500 pounds or more of an HFC refrigerant must have automatic leak detection. From January 1, 2028, a used disposable cylinder you won’t use again goes to a reclaimer, a refrigerant supplier or a final processor that can remove the leftover refrigerant, unless a certified technician pulls it to 15 inches of mercury vacuum and signs a statement for the scrap yard or landfill. From January 1, 2029, supermarket systems, refrigerated transport and automatic commercial ice makers must be serviced with reclaimed refrigerant. The HFC leak repair rules in force since January 1, 2026, and EPA’s May 2026 proposal to change them, are on the Type II page.
What does EPA’s 2026 Technology Transitions rule change?
It covers new equipment, not your certification. EPA’s final rule of May 2026 sets a global warming potential (GWP) limit of 1,400 for new supermarket systems from January 1, 2027 until January 1, 2032. It also lets residential and light commercial air conditioners and heat pumps made in or imported into the US before January 1, 2025 still be installed.
Is EPA 608 certification the same as Section 609?
No. Section 609 is a separate program for motor vehicle air conditioning, with its own approved programs and its own test, and a 609 card doesn’t let you buy refrigerant for stationary equipment. Off-road vehicles with motor vehicle air conditioner (MVAC)-like systems, such as farm and construction equipment, are the overlap: you can use either Section 609 or Type II.
United States · Certification test