Guide · By DueTrack Studio · Updated 2026-10-29
EPA 608 certification: types, what's tested and how to prepare
EPA Section 608 certification is required in the U.S. for technicians who maintain, service, repair or dispose of equipment that could release refrigerants. The exam has a Core section plus Type I (small appliances), Type II (high-pressure equipment) and Type III (low-pressure equipment); passing all of them gives Universal certification.
What are the certification types?
- Core: rules, ozone and climate basics, recovery, safety and shipping — required for every type.
- Type I: small appliances.
- Type II: high-pressure and very-high-pressure equipment.
- Type III: low-pressure equipment.
- Universal: Core plus Types I, II and III.
How should you study?
- Learn the Core first — every type depends on it.
- Use practice questions with explanations, not just answers.
- Time yourself on full mock exams.
- Review your mistakes until they stop repeating.
Where do you take the exam?
Through an EPA-approved certifying organisation. The EPA's Section 608 pages list the rules and the approved programs.
Questions
How hard is the EPA 608 exam?
Manageable with preparation. Most people find the Core and their target Type easiest to pass by drilling practice questions and reviewing mistakes.
Does a practice-app certificate count as certification?
No. Only an EPA-approved certifying organisation can certify you.