Section 609 Certification: What Repair Shops Need

Section 609 certification is the EPA credential every technician needs before touching the refrigerant in a vehicle's air conditioning for pay, and it's only half of what the rule asks of a shop. The other half falls on the owner: approved recovery equipment, a one-time statement to EPA, and records kept on site.

More on this topic: Auto repair laws and compliance, every guide in one place.

Most pages about 609 are written for the technician taking the test. This one is for the person who runs the shop. We read 40 CFR Part 82 Subpart B and EPA's motor vehicle air conditioning pages in October 2026 and quote them below, with a checklist you can work through this week.

The short answer

Section 609 certification, in short: anyone paid to service a vehicle A/C system must pass an EPA-approved program (ASE's online test is $23, 24 of 30 to pass, lifetime certificate), use EPA-approved recovery equipment, and the shop sends EPA a one-time signed equipment statement and keeps certification and refrigerant records on site for 3 years.

Key takeaways

• Section 609 applies to anyone servicing a vehicle A/C system "for consideration", which 40 CFR 82.32 defines as being paid in cash, credit, goods or services.
• EPA says certification is required "regardless of what refrigerant is used": R-12, R-134a, R-1234yf and CO2 systems are all covered.
• EPA lists 23 general approved programs in its June 2026 update; ASE's online test costs $23 and gives a lifetime certificate.
• The shop certifies its recovery equipment to its EPA regional office once; shops that already did it for R-12 or R-134a don't resubmit for R-1234yf machines.
• Keep proof that every person using the equipment is certified, and where your recovered refrigerant went, on site for three years.

Disclosure: we make BayRobin, an AI receptionist and front office for independent repair shops, and show where it fits. Everything here works without it. Figures from other companies come from their public pages, checked in October 2026 and linked at the end.

What is Section 609 certification?

It's the technician training and certification required by section 609 of the Clean Air Act for anyone who services motor vehicle air conditioning (MVAC) for pay. The rules sit in 40 CFR Part 82, Subpart B. Section 82.34 says no person servicing MVACs for consideration "may perform any service involving the refrigerant" unless they are properly using approved equipment and have been "properly trained and certified" by an approved program.

Two definitions decide whether it applies to you. An MVAC is "mechanical vapor compression refrigeration equipment used to cool the driver's or passenger's compartment", and "Service for consideration means being paid to perform service, whether it is in cash, credit, goods, or services." If your shop charges for A/C work, or for any job that opens the refrigerant circuit, it applies.

EPA's servicing page, updated April 2026, adds that certification is required "regardless of what refrigerant is used in the system." CO2 (R-744) systems are exempt from the venting ban but, in EPA's words, "CO2 is not exempt from the Section 609 requirements."

Who in the shop needs to be 609 certified?

Every person who does refrigerant work, not just your A/C specialist. The rule attaches to the service, so the question is who recovers, recycles or recharges refrigerant on a paying job:

How do technicians get certified, and what does it cost?

By passing a test from an EPA-approved program. EPA's list, last updated in June 2026, names 23 general programs, including ASE, ESCO Institute, MACS, Texas A&M's TEEX, SkillCat, KPA, ComplyAuto and Universal Technical Institute, plus programs run only for their own employees, such as Jiffy Lube International.

EPA's page lists no prices. ASE's Section 609 program page, read in October 2026, shows an online test for $23. You must "answer at least 24 out of 30 questions correctly", you get a 60-day temporary credential to print straight away, and ASE calls the result a "lifetime certificate". Its material includes R-1234yf, R-744 and R-152a. Other programs set their own fees and formats, so compare on their own sites.

Neither EPA page we read gives an expiry date, and ASE's certificate is lifetime. A technician who certified years ago on R-12 material is still certified, but a refresher on R-1234yf is worth the hour; see our guide to ASE certification for shops for how shops pay for and track tests.

What does the shop have to certify to EPA?

That it owns approved recovery equipment and that the people using it are certified, in a one-time signed statement to your EPA regional office. EPA calls it "a one-time requirement" for new shops or shops servicing MVAC for the first time. Under 40 CFR 82.42 the statement must be signed by the equipment owner or another responsible officer and include:

• The purchaser's name and the establishment's name, address and phone number.
• Each machine's brand, model, year (date of manufacture) and serial number.
• A statement that the equipment is approved, that each person authorized to use it "is properly trained and certified", and that the information is true.

A shop that already certified R-12 or R-134a equipment "is not required to re-submit certification to EPA when they purchase new equipment," EPA says, including equipment for HFO-1234yf. A new owner or a new location is a different matter: send one.

Example statement (fill in your details)

[Shop name], [street address, city, state], [phone]. I certify that this establishment has acquired and is properly using the following refrigerant recovery equipment approved under section 609 of the Clean Air Act: [brand], model [model], manufactured [year], serial no. [serial]. Each person authorized to operate this equipment is properly trained and certified under 40 CFR 82.40. The information given is true and correct. Signed: [name, title], [date].

That wording is our example built from the listed contents, not an EPA form. Check EPA's servicing page for your regional office's address, keep a copy of what you sent, and note the date you sent it.

What equipment counts as approved?

Equipment certified to the SAE standard for its refrigerant and job, listed in 40 CFR 82.36 and on EPA's certified equipment page (updated October 2026):

Older R-12 and R-134a machines bought before the dates in 82.36(b) can count as approved if they're substantially identical to certified equipment. If you're adding R-1234yf, our guide to R-1234yf for repair shops covers the machine, fittings and costs.

What records does a 609 shop keep?

Two kinds, on site, for at least three years. EPA's servicing page and 40 CFR 82.42(b) ask for:

• Proof that each person using the servicing equipment is trained and certified under section 609: a copy of every certificate or card.
• The name and address of any facility your recovered refrigerant is sent to, such as a reclaimer.

You must also let an EPA representative onto the premises to see them. One folder by the A/C machine with the cards, the statement and refrigerant receipts covers it.

Who can buy refrigerant, and are small cans still sold?

Mostly certified technicians. Under 40 CFR 82.34(b), R-12 in containers under 20 pounds may only be sold to people certified under section 609, or for resale, and retail sellers post a sign saying so. Since 1 January 2018, 40 CFR 82.154(c) extends the sales restriction to "any non-exempt substitute for use as a refrigerant": the buyer must be a section 608 technician or certified under Subpart B (section 609) for refrigerant acceptable for MVACs.

The exception is the DIY can: refrigerant "intended for use in an MVAC" in a container of two pounds or less with a unique fitting, and, for cans made or imported from 2018, a self-sealing valve. Expect your parts supplier to ask for a 609 card before selling you a cylinder.

How do R-134a and R-1234yf fit, and did the AIM Act change servicing?

R-134a has a global warming potential 1,430 times that of CO2; R-1234yf has a GWP of 4, is "Mildly flammable (ASHRAE A2L)", and EPA says it's "Currently used in the majority of light-duty vehicles." EPA's Technology Transitions rule under the AIM Act sets a GWP limit of 150 for new light-duty passenger vehicles from model year 2025, and for medium-duty passenger vehicles and heavy-duty pickups and vans from model year 2028.

None of that stops you servicing older cars. EPA's servicing page says the rule "does not restrict the use of HFC refrigerants in the servicing or repair of existing MVAC systems", and existing vehicles "can continue to be serviced with HFC-134a". EPA published amendments to the Technology Transitions rule in May 2026; its sector table, updated in August 2026, still shows the MVAC dates above, but check the rule itself before you rely on them. Intentional venting of refrigerant is banned throughout.

What should a 609 compliance checklist include?

Six items, most of them one-time:

1. List everyone who does refrigerant work and get a copy of each 609 certificate; book a test for anyone without one.
2. Check every recovery machine's label for its SAE standard and match it to the refrigerants you service.
3. Confirm the shop's equipment statement went to the EPA regional office; send one if you're new, bought the shop, or opened a location.
4. Keep the certificates, the statement and refrigerant pickup receipts in one folder for at least three years.
5. Tell whoever orders refrigerant that the supplier will ask for a certified buyer.
6. Add the 609 card check to your hiring checklist for technicians.

We read the federal regulations on Cornell's Legal Information Institute mirror because eCFR blocks automated reading; verify the current text on ecfr.gov. This isn't legal or environmental compliance advice: rules change, and your state and city can add stricter ones, so check the current text and your state environmental or safety agency before you change how you work.

Frequently asked questions

Does Section 609 certification expire?

Neither EPA page we read gives an expiry, and ASE calls its 609 credential a lifetime certificate. Once certified, a technician stays certified, though refresher training on newer refrigerants is sensible.

Can you get 609 certified online?

Yes. Several EPA-approved programs test online. ASE's online test cost $23 when we checked in October 2026, with 30 questions and 24 correct needed to pass.

Do I need a separate certification for R-1234yf?

EPA says 609 certification is required regardless of refrigerant and lists no separate R-1234yf credential. Choose a program whose material covers R-1234yf, as ASE's does.

What's the difference between 608 and 609 certification?

Section 609 covers motor vehicle air conditioning. Section 608 covers stationary refrigeration and air conditioning. Some MVAC-like equipment can fall under either; EPA has a page on the overlap.

Do I need 609 certification to buy R-134a?

For cylinders, generally yes: since 2018 substitute refrigerants are sales-restricted to certified buyers. Cans of two pounds or less with a self-sealing valve and unique fitting are exempt.

Where BayRobin fits

BayRobin doesn't track certifications or equipment records. Where it helps is the A/C job itself: put your A/C service and refrigerant prices in the price book and maintenance plans, build repair orders of labor, parts and fees that the customer approves or declines service by service on one link, and the AI receptionist only quotes the price ranges you set. More on inspections, estimates and invoices. BayRobin is free until your first 10 booked jobs, no card up front. Start free or see pricing.

Related: R-1234yf for repair shops, A/C recharge pricing for shops, ASE certification for shops, Auto repair shop safety checklist, BayRobin for general repair shops.

Sources

Competitor details in this post were checked against these public pages in October 2026. Products and prices change, so confirm with each vendor before you decide.

• EPA: Section 609 technician training and certification programs (updated June 2026)
• EPA: Regulatory requirements for MVAC system servicing (updated April 2026)
• EPA: Section 609 certified equipment (updated October 2026)
• EPA: Acceptable refrigerants and their impacts (MVAC, updated April 2026)
• EPA: Technology Transitions HFC restrictions by sector (updated August 2026)
• 40 CFR 82.32: definitions, servicing of motor vehicle air conditioners (Cornell LII)
• 40 CFR 82.34: prohibitions, MVAC servicing (Cornell LII)
• 40 CFR 82.36: approved refrigerant recycling equipment (Cornell LII)
• 40 CFR 82.42: certification, recordkeeping and public notification (Cornell LII)
• 40 CFR 82.154: prohibitions, including refrigerant sales restrictions (Cornell LII)
• ASE: Section 609 refrigerant recovery and recycling program