EPA 609 Practice Test – Mobile A/C Refrigerant Handling
EPA Section 609 governs the recovery, recycling, and handling of refrigerants used in motor vehicle air conditioning (MVAC) systems. Any technician who services these systems — at dealerships, independent shops, or fleet facilities — must be certified under this program to legally purchase and handle regulated refrigerants.
EPA 609 Exam Facts
| Fact | Detail |
|---|---|
| Number of questions | 25 questions |
| Passing score | 84% (21 out of 25 correct) |
| Format | Multiple choice |
| Certification valid | No expiration — certification does not expire |
| Who administers it | EPA-approved testing organizations (e.g., MACS, ASE) |
EPA 609 Practice Test – 10 Original Practice Questions
These are original practice questions created for study purposes only. They are not real exam questions, leaked exam content, or official EPA test material.
1. Under EPA Section 609, which of the following individuals is required to be certified before purchasing refrigerant in containers larger than two pounds?
A. A vehicle owner who services their own personal car
B. A parts store employee who only sells refrigerant cans
C. A technician who services motor vehicle air conditioning systems
D. A warehouse worker who stores refrigerant containers
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Answer: C. Section 609 requires technicians who service MVAC systems to be certified before they may purchase regulated refrigerants in containers larger than two pounds. Vehicle owners servicing their own vehicles are exempt from this requirement.
2. Which federal law provides the authority for EPA Section 609 refrigerant regulations for motor vehicle air conditioning systems?
A. The Resource Conservation and Recovery Act
B. The Clean Air Act
C. The Safe Drinking Water Act
D. The Toxic Substances Control Act
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Answer: B. EPA Section 609 derives its authority from Section 609 of the Clean Air Act, which specifically addresses the handling of refrigerants used in motor vehicle air conditioning systems.
3. Which of the following refrigerants has been most commonly used in motor vehicle A/C systems manufactured after 1994?
A. R-12
B. R-22
C. R-134a
D. R-502
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Answer: C. R-134a replaced R-12 as the standard MVAC refrigerant beginning with model year 1994 vehicles, following the phase-out of ozone-depleting CFCs under the Montreal Protocol.
4. Under EPA Section 609, it is a violation to knowingly vent which of the following refrigerants while servicing a motor vehicle air conditioning system?
A. Carbon dioxide (R-744) only
B. R-134a and R-12
C. Water-based refrigerant blends only
D. Nitrogen
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Answer: B. The EPA prohibits the knowing venting of ozone-depleting substances such as R-12 and substitutes such as R-134a during MVAC service. Nitrogen and other non-refrigerant gases are not subject to this venting prohibition.
5. Recovery equipment used to service motor vehicle A/C systems must be certified to which standard?
A. UL 2010
B. SAE J2210
C. SAE J2788
D. AHRI 700
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Answer: C. EPA Section 609 requires that refrigerant recovery and recycling equipment used on MVAC systems meet SAE J2788 (for R-134a) or the applicable SAE standard, which sets efficiency and purity benchmarks for that equipment.
6. Refrigerant recovered from motor vehicle A/C systems must meet what purity standard before it can be returned to a different vehicle?
A. ASHRAE Standard 15
B. AHRI 700
C. SAE J2099
D. EPA Method 18
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Answer: C. Recycled R-134a intended for reuse in MVAC systems must meet SAE J2099 purity standards, which specify limits on moisture, air, and other contaminants to protect system components.
7. Which of the following best describes the term “recover” in the context of EPA Section 609?
A. Recharging a system with new refrigerant from a cylinder
B. Removing refrigerant from a system without necessarily testing or processing it
C. Processing used refrigerant to meet new-product purity specifications
D. Disposing of refrigerant by controlled release outdoors
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Answer: B. Recovery means removing refrigerant from a system and storing it in an external container, without necessarily cleaning or testing it. This is different from recycling (on-site cleaning) or reclaiming (processing to new-product standards).
8. A shop purchases a new, dedicated R-134a recovery/recycling machine for MVAC work. Which of the following statements about this equipment is correct?
A. It may also be used to service R-12 systems without restriction
B. It must be certified to the appropriate SAE standard for the refrigerant being serviced
C. It only needs to meet EPA Section 608 standards
D. Certification of the equipment is optional if the technician is certified
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Answer: B. Section 609 requires that service equipment be certified to the applicable SAE standard for the specific refrigerant in use. Using equipment that is not properly certified is a violation regardless of technician certification status.
9. Which of the following is true regarding the sale of R-134a in small cans (two pounds or less) to vehicle owners for self-service?
A. It is completely prohibited under Section 609
B. It requires the purchaser to show a Section 609 certificate
C. It is permitted, as small cans are exempt from the certification purchase requirement
D. It is only allowed at EPA-licensed retail outlets
Show answer
Answer: C. Containers of two pounds or less of refrigerant are exempt from the Section 609 certification-to-purchase requirement, which is why small self-service cans are sold at retail stores to the general public.
10. Under EPA regulations, a technician who knowingly vents a refrigerant covered by Section 609 may be subject to which of the following?
A. A verbal warning on the first offense only
B. Mandatory retesting within 30 days
C. Significant civil penalties per day of violation
D. Automatic loss of their driver’s license
Show answer
Answer: C. The Clean Air Act authorizes the EPA to assess significant civil penalties for each day that a violation — including the knowing venting of regulated refrigerants — continues. Enforcement actions can also include criminal penalties in serious cases.
Key Facts to Memorize
- Who must certify: Any technician who services motor vehicle air conditioning systems must hold a valid Section 609 certification before purchasing refrigerant in containers over two pounds.
- Small-can exemption: Containers of two pounds or less are exempt from the certification-to-purchase requirement and may be sold to the general public.
- No venting allowed: Knowingly releasing R-12, R-134a, or other regulated MVAC refrigerants into the atmosphere is prohibited under the Clean Air Act.
- Refrigerant transition: R-12 (a CFC) was phased out of new vehicles after model year 1993; R-134a (an HFC) became the standard. Newer vehicles may use R-1234yf.
- Equipment standards: Recovery and recycling machines must be certified to the applicable SAE standard (e.g., SAE J2788 for R-134a systems).
- Purity of recycled refrigerant: Refrigerant recycled on-site and returned to a different vehicle must meet SAE J2099 purity requirements.
- Certification does not expire: A Section 609 technician certification has no expiration date under current EPA rules.
- Penalties are real: Civil penalties under the Clean Air Act can be assessed per day of violation; always recover refrigerant before opening a system.
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Frequently Asked Questions
Is the EPA 609 exam the same as the EPA 608 exam?
No. EPA Section 609 is a separate certification specifically for technicians who service motor vehicle air conditioning (MVAC) systems. EPA Section 608 covers stationary refrigeration and air conditioning equipment. Some technicians hold both certifications if they work on both types of equipment. Learn more on the EPA’s Section 608 page, which also links to related MVAC guidance.
How do I find an approved Section 609 testing organization?
The EPA approves organizations such as MACS (Mobile Air Conditioning Society) and ASE (Automotive Service Excellence) to administer Section 609 certification tests. Check directly with those organizations or your employer for upcoming testing opportunities near you.
Does my Section 609 certification ever expire?
No. Under current EPA regulations, a Section 609 technician certification does not have an expiration date. However, you should stay current with regulatory changes — for example, the introduction of R-1234yf in newer vehicles has added new equipment and handling considerations.
Can I use my Section 609 certification to buy refrigerant for home A/C systems?
No. Section 609 certification only covers the purchase of refrigerants for motor vehicle air conditioning systems. To purchase and handle refrigerants for stationary residential or commercial HVAC equipment, you need the appropriate Section 608 certification (Type I, II, III, or Universal).