1. C
2. B
3. B
4. A
5. B
6. B
7. B
8. C
9. B
10. B
11. B
12. C
13. B
14. C
15. A
16. B
17. A
18. B
19. A
20. B
21. B
Facts verified Oct 20, 2026 against U.S. Environmental Protection Agency. Dates that have passed are removed automatically.
| Item | Detail | Official source |
|---|---|---|
| Number of questions (Universal) | 100 questions | ecfr.gov |
| Passing score | 70% (closed-book); 84% for mail-in Type I | ecfr.gov |
| Validity | Does not expire | U.S. Environmental Protection Agency |
| Renewal | No recertification currently required | ecfr.gov |
| Delivery | Closed-book, proctored test through an EPA-approved certifying program (mail-in allowed for Type I only) | ecfr.gov |
| Eligibility | Required for technicians who service or dispose of refrigerant-containing equipment; supervised apprentices exempt | U.S. Environmental Protection Agency |
| Score release | Within 30 days of the test | ecfr.gov |
Facts verified Oct 20, 2026 against U.S. Environmental Protection Agency. Dates that have passed are removed automatically.