EPA Section 608 certification
Pass the EPA 608 exam the first time
Free practice tests for every section, written from the current regulations. Every answer explains why and cites the rule it comes from.
Free practice tests
Core
Regulations, environmental impact, the three Rs, recovery, safety and shipping. Required for every certification type.
Type I
Servicing small appliances.
Type II
Servicing or disposing of medium-, high- or very high-pressure appliances, except small appliances and motor vehicle air conditioners.
Type III
Servicing or disposing of low-pressure appliances.
How the exam works
| Questions | 25 Core + 25 per type. Universal: 100 (25 Core, 25 each for Types I, II, III) |
|---|---|
| Passing score | 70% (84% for a mail-in Type I test) |
| Format | Type II, III and Universal: closed-book and proctored. Type I: on-site or mail-in |
| Who certifies | An EPA-approved technician certification program |
Sources: 40 CFR 82 Subpart F, Appendix D; 40 CFR 82.161.
Which certification do you need?
- Type I: small appliances.
- Type II: medium-, high- or very high-pressure appliances, except small appliances and motor vehicle air conditioners.
- Type III: low-pressure appliances.
- Universal: all three types.
Every type also needs the Core section.
Why our questions are different
- Written from primary sources: the eCFR text of 40 CFR Part 82 Subpart F and Part 84, plus EPA's own Section 608 pages.
- Every answer was checked by a separate verification pass against those sources before it went live.
- Where older study guides teach a rule that has since changed, the answer shows an exam note so you know what you might see on test day.
Common questions
Who needs EPA 608 certification?
Anyone who could reasonably be expected to open the refrigerant circuit while maintaining, servicing, repairing or disposing of appliances that contain a class I or class II refrigerant or a non-exempt substitute refrigerant must pass a certification exam from an approved program (40 CFR 82.161(a)(1)).
How many questions are on the EPA 608 exam?
Each test has 25 questions from the Core group and 25 from each technical type being certified. A Universal test has 100 questions: 25 Core plus 25 each for Types I, II and III (40 CFR 82 Subpart F, Appendix D).
What score do you need to pass?
The passing score for the closed-book Type I, Type II, Type III and Universal tests is 70 percent. A mail-in Type I test needs 84 percent (Appendix D).
Is the exam open book?
Type II, Type III and Universal tests are closed-book and proctored. Type I programs may offer an on-site test or a mail-in format (Appendix D).
Get all 140 questions
Full bank with cited explanations, 25-question mock exams for every section and a 100-question Universal mock. $19 once. No account, no subscription.