EPA Section 608 Technician Certification
EPA Section 608 certification is not one exam. Every test is 25 Core items plus 25 items for the type you are certifying in, so a single Type I, II or III test is 50 questions and Universal is 100. The passing score is 70 percent, set in federal regulation, and 84 percent for a mail-in Type I. The credential does not expire. EPA approves the certifying organisations but does not set the fee or a time limit.
Content outline and weights
| Content area | Weight | Study |
|---|---|---|
| Core | 25% | Practice |
| Type I — small appliances | 25% | Practice |
| Type II — medium, high and very high-pressure appliances | 25% | Practice |
| Type III — low-pressure appliances | 25% | Practice |
Passing: 70 percent on the closed-book Type I, Type II, Type III and Universal tests. A mail-in Type I test requires 84 percent. Candidates must be told their result within 30 days. EPA does not set a time limit or a fee; each approved certifying programme sets its own. (Office of the Federal Register (eCFR))
The structure nobody explains clearly
Section 608 certification is built as Core plus a type. Appendix D to subpart F fixes it in regulation:
| Certification | Core items | Type items | Total |
|---|---|---|---|
| Type I | 25 | 25 | 50 |
| Type II | 25 | 25 | 50 |
| Type III | 25 | 25 | 50 |
| Universal | 25 | 75 (25 each from Type I, II and III) | 100 |
Universal can be earned in one 100-item sitting, or by combining passing scores on separate Type I, Type II and Type III tests.
The four types
Which one you need is a question about the equipment, not about your job title. From 40 CFR 82.161(a)(1):
- Type I — you maintain, service or repair small appliances.
- Type II — you maintain, service, repair or dispose of medium-, high- or very high-pressure appliances, other than small appliances, MVACs and MVAC-like appliances.
- Type III — you maintain, service, repair or dispose of low-pressure appliances.
- Universal — you do all three.
EPA's own web page calls Type II "High-Pressure". The regulation is broader: Type II also covers medium-pressure appliances. Where the two differ, the regulation governs.
Two cases catch people out. MVAC-like appliances — the open-drive air conditioning on off-road and agricultural vehicles, 20 pounds or less — need Type II or a subpart B certification. And disposal of small appliances, MVACs and MVAC-like appliances requires no certification at all under 82.161(a)(1)(vii).
Passing
70 percent, for Type I, Type II, Type III and Universal alike. A mail-in Type I test needs 84 percent, because it is not proctored.
Tests are closed book and proctored, assembled by each certifying programme from the EPA test bank, with at least one proctor per 50 candidates. You must be told your result within 30 days, and receive a wallet card within 30 days.
One trap worth knowing before you book anything: a Core test taken open book cannot be used toward Universal certification. The Core test must be proctored to count.
It does not expire
EPA states it directly: "Section 608 Technician Certification credentials do not expire."
The regulation is consistent with that. Section 82.161(a)(5) says only that the Administrator "reserves the right to specify a requirement for technician recertification at some future date, if necessary, by placing a notice in the Federal Register". No such notice sets a renewal today.
What you do have to do is keep the paperwork: 82.161(a)(4) requires you to keep a copy of your certificate at your place of business, and to keep it until three years after you stop working as a technician.
What we do not state
The fee and the time limit. Appendix D says only that certifying programmes "may charge individuals reasonable fees", and it sets no time limit. Both are set by the approved organisation you test with, and vary. Check the EPA list of approved certifying programmes rather than trusting a number on a prep site.
Exam guides
- What EPA 608 certification costs, and why we will not quote a price
EPA does not set the price of Section 608 certification. Appendix D to subpart F permits each approved certifying programme to charge its own reasonable fee, so the cost depends entirely on which organisation you test with and whether you sit one type or Universal. Any single figure quoted as the EPA 608 exam fee is a particular vendor's price, not a regulated one.
- Who needs EPA 608 certification, and who does not
Certification is required of anyone who could reasonably be expected to violate the integrity of the refrigerant circuit while maintaining, servicing, repairing or disposing of an appliance containing a class I or class II refrigerant or a non-exempt substitute. Registered apprentices are exempt while closely and continually supervised. Disposal of small appliances, MVACs and MVAC-like appliances needs no certification. There is no education or experience prerequisite.
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Primary references
- Appendix D to Subpart F of Part 82 — Standards for Becoming a Certifying Program for Technicians — Office of the Federal Register (eCFR) · government · retrieved 2026-09-22, verified 2026-09-22
- 40 CFR Part 82 Subpart F — Recycling and Emissions Reduction — Office of the Federal Register (eCFR) · government · retrieved 2026-09-22, verified 2026-09-22
- Section 608 Technician Certification Requirements — United States Environmental Protection Agency · primary · retrieved 2026-09-22, verified 2026-09-22
- Section 608 Test Topics — United States Environmental Protection Agency · primary · retrieved 2026-09-22, verified 2026-09-22