EPA 608 Type III study guide
EPA 608 Type III · Work through your exam, one topic at a time.
Section 608 Type III is one of the equipment-specific technician certifications issued under EPA regulations at 40 CFR Part 82, Subpart F, which implement Section 608 of the Clean Air Act. Under those rules, technicians who maintain, service, repair, or dispose of equipment that could release ozone-depleting refrigerants into the atmosphere must be certified, and since January 1, 2018 that requirement also reaches appliances containing most substitute refrigerants, including HFCs. The EPA 608 Type III study guide has 5 sections and about 2,153 words.
01Low-Pressure Refrigerant Recovery, Recycling, and Reclamation
Type III questions in this domain test whether you can choose the right recovery endpoint and distinguish recovery, recycling, and reclamation for low-pressure appliances-mainly chillers using R-11, R-123, R-113, or R-114. A low-pressure appliance is defined by the refrigerant’s boiling point being above 0°C at atmospheric pressure, not by the size of the equipment.
446 words, about 2 min02Low-Pressure System Servicing and Refrigerant Handling Practices
Type III servicing questions focus on low-pressure chiller work: charging, purging non-condensables, preventing air and moisture ingress, and handling refrigerant safely. Low-pressure chillers often operate below atmospheric pressure, so a small leak draws air and moisture in rather than pushing refrigerant out.
446 words, about 2 min03Leak Detection, Repair, and Recordkeeping for Low-Pressure Appliances
Leak detection and repair questions test the 50-lb threshold, the correct leak-rate threshold, repair deadlines, verification, and three-year records. Low-pressure chillers often hold well over 50 lb, so the Section 608 leak repair rules usually apply.
454 words, about 2 min04Safe Disposal and Evacuation Requirements for Low-Pressure Equipment
Disposal and evacuation questions test the final recovery endpoint, the prohibition on venting, and the paperwork that must follow a retired low-pressure appliance. The key number is 25 mm Hg absolute for low-pressure equipment.
405 words, about 2 min05Regulatory Requirements Under Section 608 and 40 CFR Part 82, Subpart F
Regulatory questions test the structure of Section 608 and 40 CFR Part 82, Subpart F: who may work on low-pressure appliances, what is prohibited, what equipment must be certified, and what records must exist. Type III is the low-pressure certification; Type II covers high-pressure equipment.
402 words, about 2 min