EPA 608 Certification Exam Questions with
100% Correct Answers Latest Version 2025
Graded A+
November 14, 1994
What date was the sale of CFC's & HCFC's restricted to technicians certified in
refrigerant recovery?
Memorize it, ya'll.
1987-
Montreal Protocol
July 1 1992-
Violation to vent CFCs or HCFCs
Nov 15 1993-
Recovery/Recycling equipment must be certified and labeled by EPA
AND
Before this date recovery equipment needed to be capable of removing 80% of the
refrigerant, w or wo compressor, or 4 in Hg
After this date recovery equipment needs to be capable of removing 90%, or 80%
without working compressor, or 4 in Hg
AND
Required level of evacuation for Low Pressure appliances before this date was 25
inches Hg, after this date 25 mm Hg
Nov 14 1994-
Certification needed to service, maintain, or dispose of appliances with refrigerants AND
Sale of CFC and HCFC refrigerants restricted to certified techs
Nov 15 1995-
Violation to vent HFCs
Dec 31 1995-
CFCs no longer produced
15%
Comfort cooling appliances containing more than 50 lbs of refrigerant must be repaired
when the annual leak rate exceeds _____%
,35%
Commercial and Industrial process refrigeration containing ore than 50 lbs of refrigerant
must be repaired when the annual leak rate exceeds _____%
00
4 10
4 10
4 15
00
Required Recovery Levels for Type II appliances, before and after 11/15/93:
HCFC22 less than 200 lbs = B4-0 After-0
HCFC22 more than 200 lbs= B4-4 After-10
NonHCFC22 less than 200 lbs= B4-4 After 10
NonHCFC22 more than 200 lbs= B4 4 After 15
Very high pressure appliances= B4-0 After-0
Recover all refrigerants.
Section 608 of the Federal Clean Air Act requires technicians to what?
The earth's stratosphere.
The objective of the Clean Air Act is to protect what?
HydroFlouroCarbon's
HFC's
ChloroFluoroCarbon's
CFC's
Ozone Depletion Potential
ODP
The Montreal Protocol.
Which international treaty agreement was the basis for Section 608?
1.Crop losses
2.Increases in eye diseases
3.Skin Cancer
4.Reduced marine life
5.Deforestation
6.Increased ground level ozone
Depletion of the ozone in the stratosphere is known to cause what 6 things?
These atoms attack Ozone Molecules causing the formation of Chlorine Monoxide
(CLO), after colliding with another Ozone Molecule, causes 2 Oxygen (O2)
molecules to be made & leaving an atom of chlorine to act as "Free Agent"
starting the process over until 100,000 molecules of Ozone are destroyed by just
one atom of chloride.
, What happens when CFC or HCFC molecules get in the stratosphere & free atoms of
Chlorine are set free?
November 15, 1993
What date was recovery equipment required to be certified by a lab, & achieve higher
evacuation levels, & have low loss fittings?
November 14, 1994
On what date was technician certification required?
December 31, 1995
What date were CFC's phased out of production?
Persons who maintain, service, repair, or dispose of small appliances (containing
5 pounds of refrigerant (or less).
What is EPA 608 Type I certification?
Persons who maintain, service, repair, or dispose of high and very high pressure
appliances. Except small appliances and motor vehicle air conditioning systems.
What is EPA 608 Type II certification?
Persons who maintain, service, repair, or dispose of low pressure appliances.
What is EPA 608 Type III certification?
Persons who maintain, service, repair, or dispose of both low and high pressure
equipment, as well as appliances.
What is EPA 608 Universal certification?
HydroChloroFluoroCarbons
HCFC's
Commonly known as HCFC's, they are a group of man-made compunds
containing hydrogen, chlorine, fluorine, and carbon.
What are HydroChloroFluoroCarbons?
80%
A recovery cylinder must not be filled more than ___ % of it's capacity by weight?
Up-right with proper DOT classification tags.
How should refrigerant cylinders be shipped?
Polyolester
What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will also work with
CFC's and HCFC's.
Trillion
HCFC's have very low atmospheric concentrations measured in parts per?
15%
All cooling systems containing more than 50 lbs. of refrigerant must be repaired when
the annual leak rate exceeds___?
All CFC's
Mineral Oils are used with?
HCFC's (Will also work with CFC's)
100% Correct Answers Latest Version 2025
Graded A+
November 14, 1994
What date was the sale of CFC's & HCFC's restricted to technicians certified in
refrigerant recovery?
Memorize it, ya'll.
1987-
Montreal Protocol
July 1 1992-
Violation to vent CFCs or HCFCs
Nov 15 1993-
Recovery/Recycling equipment must be certified and labeled by EPA
AND
Before this date recovery equipment needed to be capable of removing 80% of the
refrigerant, w or wo compressor, or 4 in Hg
After this date recovery equipment needs to be capable of removing 90%, or 80%
without working compressor, or 4 in Hg
AND
Required level of evacuation for Low Pressure appliances before this date was 25
inches Hg, after this date 25 mm Hg
Nov 14 1994-
Certification needed to service, maintain, or dispose of appliances with refrigerants AND
Sale of CFC and HCFC refrigerants restricted to certified techs
Nov 15 1995-
Violation to vent HFCs
Dec 31 1995-
CFCs no longer produced
15%
Comfort cooling appliances containing more than 50 lbs of refrigerant must be repaired
when the annual leak rate exceeds _____%
,35%
Commercial and Industrial process refrigeration containing ore than 50 lbs of refrigerant
must be repaired when the annual leak rate exceeds _____%
00
4 10
4 10
4 15
00
Required Recovery Levels for Type II appliances, before and after 11/15/93:
HCFC22 less than 200 lbs = B4-0 After-0
HCFC22 more than 200 lbs= B4-4 After-10
NonHCFC22 less than 200 lbs= B4-4 After 10
NonHCFC22 more than 200 lbs= B4 4 After 15
Very high pressure appliances= B4-0 After-0
Recover all refrigerants.
Section 608 of the Federal Clean Air Act requires technicians to what?
The earth's stratosphere.
The objective of the Clean Air Act is to protect what?
HydroFlouroCarbon's
HFC's
ChloroFluoroCarbon's
CFC's
Ozone Depletion Potential
ODP
The Montreal Protocol.
Which international treaty agreement was the basis for Section 608?
1.Crop losses
2.Increases in eye diseases
3.Skin Cancer
4.Reduced marine life
5.Deforestation
6.Increased ground level ozone
Depletion of the ozone in the stratosphere is known to cause what 6 things?
These atoms attack Ozone Molecules causing the formation of Chlorine Monoxide
(CLO), after colliding with another Ozone Molecule, causes 2 Oxygen (O2)
molecules to be made & leaving an atom of chlorine to act as "Free Agent"
starting the process over until 100,000 molecules of Ozone are destroyed by just
one atom of chloride.
, What happens when CFC or HCFC molecules get in the stratosphere & free atoms of
Chlorine are set free?
November 15, 1993
What date was recovery equipment required to be certified by a lab, & achieve higher
evacuation levels, & have low loss fittings?
November 14, 1994
On what date was technician certification required?
December 31, 1995
What date were CFC's phased out of production?
Persons who maintain, service, repair, or dispose of small appliances (containing
5 pounds of refrigerant (or less).
What is EPA 608 Type I certification?
Persons who maintain, service, repair, or dispose of high and very high pressure
appliances. Except small appliances and motor vehicle air conditioning systems.
What is EPA 608 Type II certification?
Persons who maintain, service, repair, or dispose of low pressure appliances.
What is EPA 608 Type III certification?
Persons who maintain, service, repair, or dispose of both low and high pressure
equipment, as well as appliances.
What is EPA 608 Universal certification?
HydroChloroFluoroCarbons
HCFC's
Commonly known as HCFC's, they are a group of man-made compunds
containing hydrogen, chlorine, fluorine, and carbon.
What are HydroChloroFluoroCarbons?
80%
A recovery cylinder must not be filled more than ___ % of it's capacity by weight?
Up-right with proper DOT classification tags.
How should refrigerant cylinders be shipped?
Polyolester
What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will also work with
CFC's and HCFC's.
Trillion
HCFC's have very low atmospheric concentrations measured in parts per?
15%
All cooling systems containing more than 50 lbs. of refrigerant must be repaired when
the annual leak rate exceeds___?
All CFC's
Mineral Oils are used with?
HCFC's (Will also work with CFC's)
