select test sections
official epa 608 certification requires 18 out of 25 questions correct [72%] to pass each section
core
general refrigeration concepts, safety, and regulations
type i
small appliances sealed with under 5 pounds of refrigerant
type ii
medium to high-pressure refrigeration and air conditioning systems
type iii
low-pressure chillers and centrifugal refrigeration systems
advice: official certification consists of 25 questions from each section. aim for universal certification. each section is graded seperately, and you can retake the test excluding any sections you previously passed.
study mode
infinite question practice with progress tracking
select sections to study:
core
general refrigeration concepts and regulations
type i
small appliances under 5 pounds
type ii
medium to high-pressure systems
type iii
low-pressure chillers
question selection mode:
progress overview:
core
0 / 160
type i
0 / 68
type ii
0 / 78
type iii
0 / 71
study mode
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