FLORIDA EPA SECTION 608 REFRIGERANT
CERTIFICATION EXAM COMPLETE PRACTICE EXAM |
ADVANCED PRACTICE QUESTIONS AND ANSWERS |
UPDATED 2026/2027 CERTIFICATION STUDY GUIDE
Examiner/Administrator: United States Environmental Protection Agency (EPA)
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EPA SECTION 608 REFRIGERANT CERTIFICATION PRACTICE EXAM
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
120 ORIGINAL MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
TABLE OF CONTENTS
I. Clean Air Act Regulations
II. Ozone Depletion & Environmental Protection
III. Refrigerant Safety & Handling
IV. Recovery, Recycling & Reclamation
V. Leak Detection & Leak Repair
VI. Evacuation Requirements
VII. Recovery Equipment & Cylinders
VIII. Refrigeration System Service Procedures
IX. Refrigerant Characteristics
X. Technician Responsibilities & Best Practices
,UNITED STATES ENVIRONMENTAL PROTECTION AGENCY || ALIGNED WITH
CURRENT SECTION 608 CERTIFICATION BLUEPRINTS || PROFESSIONAL
CERTIFICATION STUDY GUIDE || UPDATED 2026/2027 EDITION || ORIGINAL
PRACTICE QUESTIONS WITH DETAILED ANSWERS || COMPREHENSIVE EXAM
PREPARATION || DEVELOPED FOR PROFESSIONAL HVAC/R CERTIFICATION STUDY
|| PROFESSIONAL EXAMINATION USE
Questions 1–8 — Clean Air Act & Regulatory Requirements
QUESTION 1.
A technician is preparing to remove a failed compressor from a comfort-cooling
system containing an ozone-depleting refrigerant. Before opening the sealed system,
which action is required under EPA regulations?
A. Vent the refrigerant outdoors if the repair will be completed within one hour.
B. Recover refrigerant using EPA-compliant recovery equipment before opening the
system.
C. Release only vapor refrigerant while recovering liquid later.
D. Disconnect electrical power and immediately replace the compressor.
Correct Answer: B. Recover refrigerant using EPA-compliant recovery equipment
before opening the system.
Explanation: EPA Section 608 prohibits the intentional release of regulated refrigerants
during service, maintenance, repair, or disposal. Refrigerant must first be recovered
using certified recovery equipment before opening the refrigeration circuit. Option A
violates federal regulations. Option C still involves illegal venting. Option D ignores the
mandatory refrigerant recovery requirement before servicing.
QUESTION 2.
,Which refrigerant characteristic contributed most significantly to the phaseout of CFC
refrigerants?
A. High operating pressure
B. High ozone depletion potential
C. Poor lubricating ability
D. Low vapor density
Correct Answer: B. High ozone depletion potential.
Explanation: CFC refrigerants possess high ozone depletion potential (ODP), allowing
chlorine atoms released in the stratosphere to destroy ozone molecules. This
environmental impact led to international agreements and regulatory phaseouts. The
remaining options are not the primary environmental concern addressed by EPA
regulations.
QUESTION 3.
A technician knowingly vents refrigerant during a repair because the remaining
charge is considered "small." Which statement is correct?
A. Venting is allowed if less than five pounds remain.
B. Venting is permitted only for residential systems.
C. Intentional venting violates EPA regulations regardless of system size unless
specifically exempted.
D. Venting is allowed whenever the owner approves.
Correct Answer: C. Intentional venting violates EPA regulations regardless of
system size unless specifically exempted.
Explanation: EPA regulations prohibit intentional venting of regulated refrigerants
during servicing, regardless of charge size. Only limited exemptions apply to certain
, substitute refrigerants under specific circumstances. Customer approval or system size
does not override federal requirements.
QUESTION 4.
Which refrigerant would have both ozone depletion potential and significant global
warming potential?
A. R-134a
B. R-410A
C. R-22
D. R-744
Correct Answer: C. R-22.
Explanation: R-22 is an HCFC refrigerant that possesses measurable ozone depletion
potential and high global warming potential. R-134a and R-410A have zero ozone
depletion potential but still contribute to global warming. R-744 (carbon dioxide) has
essentially zero ozone depletion potential and comparatively low global warming
impact.
QUESTION 5.
Which document demonstrates that an EPA technician has successfully met Section
608 certification requirements?
A. State HVAC contractor license
B. Universal or applicable EPA Section 608 certification credential
C. OSHA safety training card
D. Mechanical contractor permit
Correct Answer: B. Universal or applicable EPA Section 608 certification credential.
CERTIFICATION EXAM COMPLETE PRACTICE EXAM |
ADVANCED PRACTICE QUESTIONS AND ANSWERS |
UPDATED 2026/2027 CERTIFICATION STUDY GUIDE
Examiner/Administrator: United States Environmental Protection Agency (EPA)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
EPA SECTION 608 REFRIGERANT CERTIFICATION PRACTICE EXAM
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
120 ORIGINAL MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
TABLE OF CONTENTS
I. Clean Air Act Regulations
II. Ozone Depletion & Environmental Protection
III. Refrigerant Safety & Handling
IV. Recovery, Recycling & Reclamation
V. Leak Detection & Leak Repair
VI. Evacuation Requirements
VII. Recovery Equipment & Cylinders
VIII. Refrigeration System Service Procedures
IX. Refrigerant Characteristics
X. Technician Responsibilities & Best Practices
,UNITED STATES ENVIRONMENTAL PROTECTION AGENCY || ALIGNED WITH
CURRENT SECTION 608 CERTIFICATION BLUEPRINTS || PROFESSIONAL
CERTIFICATION STUDY GUIDE || UPDATED 2026/2027 EDITION || ORIGINAL
PRACTICE QUESTIONS WITH DETAILED ANSWERS || COMPREHENSIVE EXAM
PREPARATION || DEVELOPED FOR PROFESSIONAL HVAC/R CERTIFICATION STUDY
|| PROFESSIONAL EXAMINATION USE
Questions 1–8 — Clean Air Act & Regulatory Requirements
QUESTION 1.
A technician is preparing to remove a failed compressor from a comfort-cooling
system containing an ozone-depleting refrigerant. Before opening the sealed system,
which action is required under EPA regulations?
A. Vent the refrigerant outdoors if the repair will be completed within one hour.
B. Recover refrigerant using EPA-compliant recovery equipment before opening the
system.
C. Release only vapor refrigerant while recovering liquid later.
D. Disconnect electrical power and immediately replace the compressor.
Correct Answer: B. Recover refrigerant using EPA-compliant recovery equipment
before opening the system.
Explanation: EPA Section 608 prohibits the intentional release of regulated refrigerants
during service, maintenance, repair, or disposal. Refrigerant must first be recovered
using certified recovery equipment before opening the refrigeration circuit. Option A
violates federal regulations. Option C still involves illegal venting. Option D ignores the
mandatory refrigerant recovery requirement before servicing.
QUESTION 2.
,Which refrigerant characteristic contributed most significantly to the phaseout of CFC
refrigerants?
A. High operating pressure
B. High ozone depletion potential
C. Poor lubricating ability
D. Low vapor density
Correct Answer: B. High ozone depletion potential.
Explanation: CFC refrigerants possess high ozone depletion potential (ODP), allowing
chlorine atoms released in the stratosphere to destroy ozone molecules. This
environmental impact led to international agreements and regulatory phaseouts. The
remaining options are not the primary environmental concern addressed by EPA
regulations.
QUESTION 3.
A technician knowingly vents refrigerant during a repair because the remaining
charge is considered "small." Which statement is correct?
A. Venting is allowed if less than five pounds remain.
B. Venting is permitted only for residential systems.
C. Intentional venting violates EPA regulations regardless of system size unless
specifically exempted.
D. Venting is allowed whenever the owner approves.
Correct Answer: C. Intentional venting violates EPA regulations regardless of
system size unless specifically exempted.
Explanation: EPA regulations prohibit intentional venting of regulated refrigerants
during servicing, regardless of charge size. Only limited exemptions apply to certain
, substitute refrigerants under specific circumstances. Customer approval or system size
does not override federal requirements.
QUESTION 4.
Which refrigerant would have both ozone depletion potential and significant global
warming potential?
A. R-134a
B. R-410A
C. R-22
D. R-744
Correct Answer: C. R-22.
Explanation: R-22 is an HCFC refrigerant that possesses measurable ozone depletion
potential and high global warming potential. R-134a and R-410A have zero ozone
depletion potential but still contribute to global warming. R-744 (carbon dioxide) has
essentially zero ozone depletion potential and comparatively low global warming
impact.
QUESTION 5.
Which document demonstrates that an EPA technician has successfully met Section
608 certification requirements?
A. State HVAC contractor license
B. Universal or applicable EPA Section 608 certification credential
C. OSHA safety training card
D. Mechanical contractor permit
Correct Answer: B. Universal or applicable EPA Section 608 certification credential.
