EPA 608 HVAC CERTIFICATION PRACTICE EXAM
(2026 EDITION) | VERIFIED QUESTIONS WITH
CORRECT ANSWERS & DETAILED RATIONALES |
REFRIGERANT HANDLING, SECTION 608
COMPLIANCE & HVAC TECHNICIAN SUCCESS
GUIDE | HIGH-YIELD STUDY PDF
EPA 608 HVAC CERTIFICATION PRACTICE EXAM (2026 EDITION)
VERIFIED QUESTIONS WITH CORRECT ANSWERS & DETAILED EXPERT
RATIONALE
• This practice exam contains 200 high-yield questions covering all tested domains
of the EPA Section 608 certification, with verified correct answers and detailed
EXPERT RATIONALE to reinforce understanding after each question.
• Use this material by attempting each question independently before checking the
correct answer and EXPERT RATIONALE — this active recall method maximizes
retention and prepares you for the real exam format.
1. What is the primary purpose of the EPA Section 608 regulation?
A. To regulate the price of refrigerants in the market
B. To certify HVAC equipment manufacturers
C. To set energy efficiency standards for air conditioning systems
D. To train technicians on electrical safety
E. To reduce emissions of ozone-depleting refrigerants by regulating their
handling and disposal
Correct Answer: E. To reduce emissions of ozone-depleting refrigerants by
regulating their handling and disposal
, EXPERT RATIONALE: EPA Section 608 was established under the Clean Air Act
to minimize the release of refrigerants that deplete the stratospheric ozone layer. It
mandates proper recovery, recycling, reclaiming, and disposal of refrigerants.
2. Which of the following refrigerants is classified as an HFC
(Hydrofluorocarbon)?
A. R-11
B. R-22
C. R-502
D. R-410A
E. R-12
Correct Answer: D. R-410A
EXPERT RATIONALE: R-410A is a hydrofluorocarbon (HFC) blend composed of
R-32 and R-125. HFCs do not contain chlorine and therefore do not deplete the
ozone layer, though they are potent greenhouse gases.
3. Venting which of the following refrigerants is permitted under EPA Section
608?
A. R-22
B. R-134a
C. R-410A
D. Carbon dioxide (CO₂) used as a refrigerant
E. R-12
Correct Answer: D. Carbon dioxide (CO₂) used as a refrigerant
, EXPERT RATIONALE: EPA Section 608 exempts certain substances from venting
prohibitions, including CO₂, nitrogen, and water, because they do not harm the
ozone layer and have minimal direct environmental impact when released.
4. What type of EPA 608 certification is required to work on small appliances
like household refrigerators?
A. Type II
B. Type III
C. Type I
D. Universal
E. No certification is required
Correct Answer: C. Type I
EXPERT RATIONALE: Type I certification covers small appliances that are fully
manufactured, charged, and hermetically sealed in a factory with five pounds or
less of refrigerant. Household refrigerators fall under this category.
5. What does "recovering" refrigerant mean?
A. Cleaning and reusing refrigerant on-site
B. Destroying refrigerant using approved methods
C. Transferring refrigerant to a certified reclaimer
D. Removing refrigerant from a system and storing it in an approved
container without necessarily testing or reprocessing it
E. Recharging a system with new refrigerant
Correct Answer: D. Removing refrigerant from a system and storing it in an
approved container without necessarily testing or reprocessing it
, EXPERT RATIONALE: Recovery is the process of removing refrigerant from a
system in any condition and storing it in an external container. It does not include
reprocessing or reuse — that is recycling or reclaiming.
6. What is the ozone depletion potential (ODP) of R-22?
A. 0.0
B. 1.0
C. 0.05
D. 0.5
E. 2.0
Correct Answer: C. 0.05
EXPERT RATIONALE: R-22 has an ODP of 0.05, meaning it is less destructive to
the ozone layer than R-11 (ODP = 1.0), which is the reference substance. However,
R-22 is still a Class II ozone-depleting substance under the Clean Air Act.
7. Which section of the Clean Air Act governs refrigerant handling?
A. Section 602
B. Section 112
C. Section 608
D. Section 410
E. Section 205
Correct Answer: C. Section 608
EXPERT RATIONALE: Section 608 of the Clean Air Act establishes national
recycling and emission reduction requirements for refrigerants used in stationary
air conditioning and refrigeration equipment.
(2026 EDITION) | VERIFIED QUESTIONS WITH
CORRECT ANSWERS & DETAILED RATIONALES |
REFRIGERANT HANDLING, SECTION 608
COMPLIANCE & HVAC TECHNICIAN SUCCESS
GUIDE | HIGH-YIELD STUDY PDF
EPA 608 HVAC CERTIFICATION PRACTICE EXAM (2026 EDITION)
VERIFIED QUESTIONS WITH CORRECT ANSWERS & DETAILED EXPERT
RATIONALE
• This practice exam contains 200 high-yield questions covering all tested domains
of the EPA Section 608 certification, with verified correct answers and detailed
EXPERT RATIONALE to reinforce understanding after each question.
• Use this material by attempting each question independently before checking the
correct answer and EXPERT RATIONALE — this active recall method maximizes
retention and prepares you for the real exam format.
1. What is the primary purpose of the EPA Section 608 regulation?
A. To regulate the price of refrigerants in the market
B. To certify HVAC equipment manufacturers
C. To set energy efficiency standards for air conditioning systems
D. To train technicians on electrical safety
E. To reduce emissions of ozone-depleting refrigerants by regulating their
handling and disposal
Correct Answer: E. To reduce emissions of ozone-depleting refrigerants by
regulating their handling and disposal
, EXPERT RATIONALE: EPA Section 608 was established under the Clean Air Act
to minimize the release of refrigerants that deplete the stratospheric ozone layer. It
mandates proper recovery, recycling, reclaiming, and disposal of refrigerants.
2. Which of the following refrigerants is classified as an HFC
(Hydrofluorocarbon)?
A. R-11
B. R-22
C. R-502
D. R-410A
E. R-12
Correct Answer: D. R-410A
EXPERT RATIONALE: R-410A is a hydrofluorocarbon (HFC) blend composed of
R-32 and R-125. HFCs do not contain chlorine and therefore do not deplete the
ozone layer, though they are potent greenhouse gases.
3. Venting which of the following refrigerants is permitted under EPA Section
608?
A. R-22
B. R-134a
C. R-410A
D. Carbon dioxide (CO₂) used as a refrigerant
E. R-12
Correct Answer: D. Carbon dioxide (CO₂) used as a refrigerant
, EXPERT RATIONALE: EPA Section 608 exempts certain substances from venting
prohibitions, including CO₂, nitrogen, and water, because they do not harm the
ozone layer and have minimal direct environmental impact when released.
4. What type of EPA 608 certification is required to work on small appliances
like household refrigerators?
A. Type II
B. Type III
C. Type I
D. Universal
E. No certification is required
Correct Answer: C. Type I
EXPERT RATIONALE: Type I certification covers small appliances that are fully
manufactured, charged, and hermetically sealed in a factory with five pounds or
less of refrigerant. Household refrigerators fall under this category.
5. What does "recovering" refrigerant mean?
A. Cleaning and reusing refrigerant on-site
B. Destroying refrigerant using approved methods
C. Transferring refrigerant to a certified reclaimer
D. Removing refrigerant from a system and storing it in an approved
container without necessarily testing or reprocessing it
E. Recharging a system with new refrigerant
Correct Answer: D. Removing refrigerant from a system and storing it in an
approved container without necessarily testing or reprocessing it
, EXPERT RATIONALE: Recovery is the process of removing refrigerant from a
system in any condition and storing it in an external container. It does not include
reprocessing or reuse — that is recycling or reclaiming.
6. What is the ozone depletion potential (ODP) of R-22?
A. 0.0
B. 1.0
C. 0.05
D. 0.5
E. 2.0
Correct Answer: C. 0.05
EXPERT RATIONALE: R-22 has an ODP of 0.05, meaning it is less destructive to
the ozone layer than R-11 (ODP = 1.0), which is the reference substance. However,
R-22 is still a Class II ozone-depleting substance under the Clean Air Act.
7. Which section of the Clean Air Act governs refrigerant handling?
A. Section 602
B. Section 112
C. Section 608
D. Section 410
E. Section 205
Correct Answer: C. Section 608
EXPERT RATIONALE: Section 608 of the Clean Air Act establishes national
recycling and emission reduction requirements for refrigerants used in stationary
air conditioning and refrigeration equipment.
