40 CFR 82 Subpart B: EPA Motor Vehicle A/C Servicing

Regulatory citation: 40 CFR Part 82, Subpart B, Servicing of Motor Vehicle Air Conditioners (Clean Air Act Section 609)

What Are EPA's Motor Vehicle Air Conditioning Rules?

40 CFR Part 82, Subpart B implements Clean Air Act section 609. It applies to anyone who services a motor vehicle air conditioner (MVAC) for consideration when the work involves the refrigerant. For consideration means being paid in cash, credit, goods or services. Repair shops, dealerships, fleet garages and mobile technicians are all covered.

Refrigerant here means any class I or class II ozone-depleting substance used in an MVAC and, since November 15, 1995, any substitute such as HFC-134a or HFO-1234yf.

Why MVAC Servicing Rules Matter

Venting refrigerant harms the ozone layer and adds potent greenhouse gases to the atmosphere. Certified technicians using approved recovery equipment keep refrigerant in a closed loop.

Core Requirements

1. Use Certified Technicians (82.34(a)(2) and 82.40)

No one may service an MVAC for consideration unless they are properly trained and certified by an EPA-approved section 609 program. Programs must cover recovery and recycling procedures and the standards in 82.36, test impartially, verify identity and issue proof of certification with a unique number.

2. Use Approved Equipment (82.34(a)(1) and 82.36)

Servicing must use refrigerant handling equipment certified by EPA or an approved independent testing organization. Standards are refrigerant specific. They include SAE J2788 for HFC-134a recover and recycle equipment, J2843 for HFO-1234yf, J2851 for recovery-only equipment for contaminated refrigerant and J3030 for equipment that handles both HFO-1234yf and R-134a.

3. Properly Use the Equipment (82.32(e))

Properly using equipment means following Subpart B, the applicable equipment standards and the manufacturer's guidance. Intentional venting is not proper use.

4. Certify Your Equipment to EPA (82.42(a))

Owners or lessees of recovery or recycling equipment must send EPA a signed statement that they acquired approved equipment and that the people using it are properly trained and certified. The statement lists the purchaser's name, the establishment address and each machine's manufacturer, model, date and serial number.

5. Follow the Small Container Sales Rules (82.34(b) and 82.154(c))

Class I or II refrigerant suitable for MVACs may not be sold in containers holding less than 20 pounds to anyone who is not certified, unless the buyer certifies the containers are only for resale. Non-exempt substitute refrigerant for MVACs may be sold in containers of two pounds or less with a unique fitting. Those made or imported on or after January 1, 2018 must have a self-sealing valve.

6. Keep Records for 3 Years (82.42(b))

Service shops must keep records showing their equipment operators are certified. Owners of certain CFC-12 recycling equipment must keep records of facilities that receive refrigerant. Records are kept for at least three years, on site for servicers, and made available to EPA inspectors on request.

7. Post Notices at Retail (82.42(c))

Retailers selling class I or II refrigerant in containers under 20 pounds must display the sign required by the regulation explaining the federal sales restriction.

Common Compliance Approaches

Certify Everyone Who Touches the System

Require section 609 certification before any technician connects gauges or recovery equipment, and keep a copy of each card on file.

Match Machines to Refrigerants

Label each recovery machine by refrigerant and check its SAE certification before buying, especially for HFO-1234yf vehicles.

Keep an Equipment File

Store the EPA equipment certification, serial numbers and technician certificates together for inspections.

Example: MVAC Servicing in Practice

An independent auto repair shop services both older R-134a vehicles and newer HFO-1234yf vehicles. It buys a dual-refrigerant machine certified to SAE J3030 and sends EPA the signed equipment certification with the serial number. All four technicians complete an EPA-approved section 609 program, and the service manager keeps copies of their certificates. When a new hire starts, he observes only until his own certification arrives.

Related regulations: EPA Refrigerant Management (Section 608), EPA Used Oil Management Standards, EPA Hazardous Waste Generators.

Note: This summary reflects federal EPA requirements. Many states run these programs under EPA authorization and may have additional or more stringent requirements. Always check the current regulation text and any state rules that apply to you.

Frequently Asked Questions

Do I need section 609 certification to recharge my own car?

Subpart B applies to servicing for consideration. Work done for free falls outside that definition, but small can sales rules still apply.

Does section 609 cover R-134a and HFO-1234yf?

Yes. Since November 15, 1995, refrigerant under Subpart B includes substitutes, so servicing these systems for pay requires a certified technician and approved equipment.

How long must I keep records?

At least three years. Servicers keep them on site and must show them to EPA on request.