EPA 608 Certification Practice Test 2 — Questions and Answers
Question 1: Under EPA Section 608, which of the following activities requires the technician to be certified?
- Installing new ductwork with no refrigerant exposure
- Opening a refrigerant circuit to replace a component (Correct answer)
- Testing electrical connections on an A/C condenser unit
- Programming a thermostat on a split-system air conditioner
Correct answer: Opening a refrigerant circuit to replace a component
EPA Section 608 certification is required for any technician who opens a refrigerant circuit — meaning any work that involves recovering, adding, or potentially releasing refrigerant. Installing ductwork, testing electrical components, and programming thermostats do not involve working with the refrigerant circuit and do not require EPA 608 certification.
Question 2: What does the term "technician" mean specifically under EPA Section 608 regulations?
- Any HVAC contractor with a state license
- Anyone who maintains, services, repairs, or disposes of appliances containing regulated refrigerants (Correct answer)
- Only employees of EPA-certified refrigerant reclamation facilities
- Building owners who adjust thermostats on their own equipment
Correct answer: Anyone who maintains, services, repairs, or disposes of appliances containing regulated refrigerants
Under EPA Section 608, a "technician" is defined as anyone who performs maintenance, service, repair, or disposal of appliances that could reasonably be expected to release refrigerants into the environment. This includes HVAC contractors, refrigeration mechanics, and service technicians — not building owners adjusting their own equipment.
Question 3: Which EPA 608 certification type covers hermetically sealed systems containing 5 pounds or less of CFC or HCFC refrigerant?
- Type I (Correct answer)
- Type II
- Type III
- Universal
Correct answer: Type I
Type I certification under EPA Section 608 covers small appliances — hermetically sealed systems manufactured, charged, and tested at the factory, containing 5 pounds or less of CFC or HCFC refrigerant. Examples include household refrigerators, window air conditioners, and dehumidifiers. Type I technicians use different recovery techniques appropriate for these sealed systems.
Question 4: What type of approved testing organization administers the EPA Section 608 technician certification exam?
- Only the EPA itself administers certification exams
- EPA-approved certifying organizations (e.g., ESCO, NATE, RSES) (Correct answer)
- State contractor licensing boards exclusively
- Community colleges that offer HVAC degree programs
Correct answer: EPA-approved certifying organizations (e.g., ESCO, NATE, RSES)
EPA Section 608 technician certification exams must be administered by EPA-approved certifying organizations. The EPA approves third-party organizations — such as ESCO (now HVAC Excellence), NATE, RSES, and others — to develop and administer the standardized certification tests. The EPA itself does not directly administer these exams.
Question 5: What must an employer do if a new employee was previously certified under EPA Section 608 but lost their certification card?
- The employee must retake the full certification exam
- Contact the original certifying organization for a replacement card (Correct answer)
- Apply to the EPA regional office for a replacement
- No action is needed; certification never expires and cards are not required on-site
Correct answer: Contact the original certifying organization for a replacement card
EPA Section 608 certification does not expire once earned. If a technician loses their certification card, they should contact the certifying organization that issued the original certificate to request a replacement. The technician does not need to retake the exam as long as they were originally certified through an EPA-approved program.
Question 6: Which of the following is an acceptable substitute for R-22 in existing high-pressure HVAC equipment under EPA SNAP program approval?
- R-410A as a direct drop-in replacement without modifications
- R-422D as an EPA SNAP-approved retrofit refrigerant (Correct answer)
- R-11 as an alternative for cost savings
- R-744 (CO2) as a universal replacement for all HCFC systems
Correct answer: R-422D as an EPA SNAP-approved retrofit refrigerant
R-422D is one of several EPA SNAP (Significant New Alternatives Policy)-approved refrigerants for retrofitting existing R-22 equipment. It can typically replace R-22 without requiring compressor replacement, though oil conversion and system evaluation are necessary. R-410A is NOT a direct drop-in for R-22 — it requires entirely different equipment due to its much higher operating pressures.
EPA 608 Certification Practice Test 2
Under EPA Section 608, which of the following activities requires the technician to be certified?