EPA 608 passing score and exam format
The passing score for the closed-book EPA 608 Type I, Type II, Type III and Universal tests is 70 percent. Mail-in Type I tests need 84 percent.
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Questions and passing score by test
Every test has 25 questions from Group I (the Core topics) plus 25 from each technical group it covers.
| Test | Questions | Core (Group I) | Technical (Group II) | Passing score Official data | Correct answers needed Our calculation |
|---|---|---|---|---|---|
| Type I (on-site) | 50 | 25 | 25 Type I | 70% | 35 of 50 |
| Type I (mail-in) | 50 | 25 | 25 Type I | 84% | 42 of 50 |
| Type II | 50 | 25 | 25 Type II | 70% | 35 of 50 |
| Type III | 50 | 25 | 25 Type III | 70% | 35 of 50 |
| Universal | 100 | 25 | 75 (25 each of Type I, II and III) | 70% | 70 of 100 |
"Correct answers needed" is the passing percentage applied to the number of questions, rounded up. The regulation states the percentage, not the count.
How the tests are given
- Type II, Type III and Universal tests are closed-book and proctored, in a secure environment, by an EPA-approved certifying program.
- Type I can be taken on-site or by mail when the program offers only Type I. A mail-in Type I test cannot be used toward Universal certification.
- Universal can be taken all at once, or earned by combining passing scores on separate Type I, Type II and Type III tests.
- Proctors check photo identification, such as a driver's license or passport.
- Programs must use several versions of the test at each testing event.
What the questions cover
Group I (Core)
- Environmental impact of CFCs, HCFCs and substitute refrigerants
- Laws and regulations
- Changing industry outlook
Group II (Type I, II or III)
- Leak detection
- Recovery techniques
- Safety
- Shipping
- Disposal
Results and your card
- The certifying program must give you your result no later than 30 days after the test.
- If you pass, it must issue a wallet-sized identification card no later than 30 days after the test. For mail-in Type I tests, both deadlines count from the day the program receives your completed test and any required documentation.
- The card shows the program's name and the date it was approved by EPA, your name, your certification type and a unique number that does not include your Social Security number.
Practice before the test
Try our free EPA 608 Core practice test and the other sections listed on the EPA 608 page. A practice score is not a prediction of your official result.
Sources
- eCFR: 40 CFR Part 82, Subpart F, Appendix D, Standards for Becoming a Certifying Program for Technicians (as of Nov 3, 2026)Checked November 5, 2026
Independent. Not affiliated with or endorsed by the U.S. EPA or any certifying organization.