EPA 608 CORE ESSENTIALS SCRIPT 2026
FULL QUESTIONS AND SOLUTIONS
GRADED A+
⩥ What are the three equipment-specific types covered by the EPA 608
certification? Answer: Type I (small appliances), Type II (high-pressure
appliances), and Type III (low-pressure appliances).
⩥ What significant act was amended in 1990 to regulate ozone-depleting
substances? Answer: The Clean Air Act (CAA).
⩥ What does Section 608 of the Clean Air Act aim to minimize?
Answer: Emissions of refrigerants that harm the stratospheric ozone
layer and contribute to global warming.
⩥ What year was the Montreal Protocol signed? Answer: 1987.
⩥ What major milestone occurred in 1996 regarding EPA 608
certification? Answer: EPA 608 certification became mandatory.
⩥ What is the significance of the AIM Act of 2020? Answer: It mandates
the phase-down of high-GWP HFCs in new equipment.
, ⩥ What is Ozone Depletion Potential (ODP)? Answer: A measure of a
substance's ability to deplete the ozone layer.
⩥ What are the ODP values for CFCs and HCFCs? Answer: CFCs have
ODP values of 1.0; HCFCs have lower ODP values (0.02-0.11).
⩥ What is Global Warming Potential (GWP)? Answer: A measure of a
refrigerant's heat-trapping ability relative to CO₂.
⩥ What does the AIM Act direct the EPA to do by 2036? Answer:
Reduce HFC production and consumption by 85%.
⩥ What are azeotropic blends in refrigerants? Answer: Blends that
behave as single substances (e.g., R-507A).
⩥ What are zeotropic blends in refrigerants? Answer: Blends that exhibit
temperature glide and must be charged as liquid to maintain composition
(e.g., R-407C).
⩥ What is the definition of recovery in refrigerant handling? Answer:
The process of removing refrigerant from a system for reuse or disposal.
⩥ What is the required level of recovery for small appliances
manufactured after 1993? Answer: 90% recovery or evacuation to 4" Hg
vacuum.
FULL QUESTIONS AND SOLUTIONS
GRADED A+
⩥ What are the three equipment-specific types covered by the EPA 608
certification? Answer: Type I (small appliances), Type II (high-pressure
appliances), and Type III (low-pressure appliances).
⩥ What significant act was amended in 1990 to regulate ozone-depleting
substances? Answer: The Clean Air Act (CAA).
⩥ What does Section 608 of the Clean Air Act aim to minimize?
Answer: Emissions of refrigerants that harm the stratospheric ozone
layer and contribute to global warming.
⩥ What year was the Montreal Protocol signed? Answer: 1987.
⩥ What major milestone occurred in 1996 regarding EPA 608
certification? Answer: EPA 608 certification became mandatory.
⩥ What is the significance of the AIM Act of 2020? Answer: It mandates
the phase-down of high-GWP HFCs in new equipment.
, ⩥ What is Ozone Depletion Potential (ODP)? Answer: A measure of a
substance's ability to deplete the ozone layer.
⩥ What are the ODP values for CFCs and HCFCs? Answer: CFCs have
ODP values of 1.0; HCFCs have lower ODP values (0.02-0.11).
⩥ What is Global Warming Potential (GWP)? Answer: A measure of a
refrigerant's heat-trapping ability relative to CO₂.
⩥ What does the AIM Act direct the EPA to do by 2036? Answer:
Reduce HFC production and consumption by 85%.
⩥ What are azeotropic blends in refrigerants? Answer: Blends that
behave as single substances (e.g., R-507A).
⩥ What are zeotropic blends in refrigerants? Answer: Blends that exhibit
temperature glide and must be charged as liquid to maintain composition
(e.g., R-407C).
⩥ What is the definition of recovery in refrigerant handling? Answer:
The process of removing refrigerant from a system for reuse or disposal.
⩥ What is the required level of recovery for small appliances
manufactured after 1993? Answer: 90% recovery or evacuation to 4" Hg
vacuum.
