EPA 608 Certification Exam 2025/2026 ACTUAL QUESTIONS
WITH 100% CORRECT ANSWERS || VERIFIED & UPDATED
VERSION || GUARANTEED PASS
Description: This updated EPA 608 Certification Exam file
includes all verified questions and accurate answers for Core,
Type I, Type II, and Type III sections. Designed for HVAC
technicians preparing for the 2025/2026 version, it covers
refrigerant handling, recovery procedures, safety practices, and
EPA regulations. Expert-verified content ensures full exam
readiness and a guaranteed pass.
Keywords: EPA 608 certification EPA 608 core exam refrigerant
recovery procedures HVAC EPA license test EPA type I II III
practice EPA 608 study guide EPA 608 exam answers
environmental regulations HVAC technician certification
refrigerant handling exam
Core Section (25 Questions)
1. What is the primary purpose of the Clean Air Act (CAA) Section 608?
A. To improve HVAC system efficiency
B. To set manufacturing standards for air conditioners
C. To regulate the use and emissions of ozone-depleting refrigerants
D. To establish energy star ratings
2. Which of the following refrigerants has the highest ozone depletion potential (ODP)?
A. R-410A
B. R-134a
,C. R-22
D. R-1234yf
3. The "ozone layer" is found in which region of the atmosphere?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
4. Under what conditions may a technician use a system-dependent (passive) recovery
device?
A. On any system they choose
B. Only on systems with a working compressor
C. Only on systems under 50 lbs of refrigerant
D. Only when approved by the equipment owner
5. What does the "P" in the acronym "HFC" stand for?
A. Phosphate
B. Polyatomic
C. Potential
D. Fluorocarbon
6. Recovered refrigerant may be charged back into:
A. Any system
B. The same system from which it was removed or another system owned by the same person,
if filtered and tested.
C. Only systems of the same type and size
D. No systems; it must be reclaimed
7. A refrigerant cylinder that is color-coded light blue is designated for which refrigerant?
A. R-12
B. R-22
C. R-134a
D. R-410A
8. Which type of lubricant is most commonly used with HFC refrigerants like R-410A?
A. Mineral Oil
B. Alkylbenzene Oil
C. Polyol Ester (POE) Oil
D. Polyalkylene Glycol (PAG) Oil
, 9. What is the primary safety concern with R-123 refrigerant?
A. It is highly flammable
B. It has a very high pressure
C. It is a heart sensitizer
D. It is extremely toxic when burned
10. The sale of CFC and HCFC refrigerants is restricted to:
A. The general public
B. Only licensed reclaim centers
C. Certified technicians
D. Any HVAC supply house
11. What must be done with a system that has a leaking schrader valve?
A. Add more refrigerant
B. Replace the valve and repair the leak
C. Tighten the valve core
D. Nothing, it is a normal occurrence
12. When can a technician break a refrigerant seal on a system?
A. Only to add refrigerant
B. Only after recovering the refrigerant
C. Whenever necessary for maintenance
D. Only with the owner's permission
13. What is the penalty for releasing CFC or HCFC refrigerants during service?
A. A warning from the EPA
B. Loss of certification and significant fines
C. Jail time only
D. A fine from the equipment manufacturer
14. What is the state of the refrigerant in the suction line of a running system?
A. High-pressure liquid
B. High-pressure vapor
C. Low-pressure liquid
D. Low-pressure vapor
15. Which of the following is used to purge a recovery unit and hoses of air and moisture?
A. Compressed Nitrogen
B. Dry Nitrogen
WITH 100% CORRECT ANSWERS || VERIFIED & UPDATED
VERSION || GUARANTEED PASS
Description: This updated EPA 608 Certification Exam file
includes all verified questions and accurate answers for Core,
Type I, Type II, and Type III sections. Designed for HVAC
technicians preparing for the 2025/2026 version, it covers
refrigerant handling, recovery procedures, safety practices, and
EPA regulations. Expert-verified content ensures full exam
readiness and a guaranteed pass.
Keywords: EPA 608 certification EPA 608 core exam refrigerant
recovery procedures HVAC EPA license test EPA type I II III
practice EPA 608 study guide EPA 608 exam answers
environmental regulations HVAC technician certification
refrigerant handling exam
Core Section (25 Questions)
1. What is the primary purpose of the Clean Air Act (CAA) Section 608?
A. To improve HVAC system efficiency
B. To set manufacturing standards for air conditioners
C. To regulate the use and emissions of ozone-depleting refrigerants
D. To establish energy star ratings
2. Which of the following refrigerants has the highest ozone depletion potential (ODP)?
A. R-410A
B. R-134a
,C. R-22
D. R-1234yf
3. The "ozone layer" is found in which region of the atmosphere?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
4. Under what conditions may a technician use a system-dependent (passive) recovery
device?
A. On any system they choose
B. Only on systems with a working compressor
C. Only on systems under 50 lbs of refrigerant
D. Only when approved by the equipment owner
5. What does the "P" in the acronym "HFC" stand for?
A. Phosphate
B. Polyatomic
C. Potential
D. Fluorocarbon
6. Recovered refrigerant may be charged back into:
A. Any system
B. The same system from which it was removed or another system owned by the same person,
if filtered and tested.
C. Only systems of the same type and size
D. No systems; it must be reclaimed
7. A refrigerant cylinder that is color-coded light blue is designated for which refrigerant?
A. R-12
B. R-22
C. R-134a
D. R-410A
8. Which type of lubricant is most commonly used with HFC refrigerants like R-410A?
A. Mineral Oil
B. Alkylbenzene Oil
C. Polyol Ester (POE) Oil
D. Polyalkylene Glycol (PAG) Oil
, 9. What is the primary safety concern with R-123 refrigerant?
A. It is highly flammable
B. It has a very high pressure
C. It is a heart sensitizer
D. It is extremely toxic when burned
10. The sale of CFC and HCFC refrigerants is restricted to:
A. The general public
B. Only licensed reclaim centers
C. Certified technicians
D. Any HVAC supply house
11. What must be done with a system that has a leaking schrader valve?
A. Add more refrigerant
B. Replace the valve and repair the leak
C. Tighten the valve core
D. Nothing, it is a normal occurrence
12. When can a technician break a refrigerant seal on a system?
A. Only to add refrigerant
B. Only after recovering the refrigerant
C. Whenever necessary for maintenance
D. Only with the owner's permission
13. What is the penalty for releasing CFC or HCFC refrigerants during service?
A. A warning from the EPA
B. Loss of certification and significant fines
C. Jail time only
D. A fine from the equipment manufacturer
14. What is the state of the refrigerant in the suction line of a running system?
A. High-pressure liquid
B. High-pressure vapor
C. Low-pressure liquid
D. Low-pressure vapor
15. Which of the following is used to purge a recovery unit and hoses of air and moisture?
A. Compressed Nitrogen
B. Dry Nitrogen
