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How the EPA 608 Exam Is Structured and Scored

/ 7 min read / By RefrigerantReady

Most people walk into the 608 knowing it is "a few sections" and "you need 70." That is close, but the details matter, because they decide what you study, which format you pick and whether your result counts toward Universal. This guide goes straight to the rule that sets the test standards, Appendix D to 40 CFR Part 82, Subpart F, and to EPA's own certification pages. Every number below comes from there.

The exam in one table

TestCore (Group I)Technical (Group II)Total
Type I2525 (small appliances)50
Type II2525 (high pressure)50
Type III2525 (low pressure)50
Universal2575 (25 for each type)100

Source: EPA Section 608, 40 CFR 82, Subpart F, Appendix D, sections (a) and (d).

The regulation calls the shared section "Group I" and the technical sections "Group II." EPA's web pages call the shared section "Core." Same thing. In 40 CFR 82.161, EPA says the question bank has "a core group and technical groups," and that it is released only to approved certification programs. That is why nobody outside those programs can honestly sell you the real questions.

Core is on every test

You do not choose whether to take Core. Appendix D says all Type I, Type II and Type III tests include 25 questions from Group I and 25 from Group II. So even if you only want Type I, you will answer 25 Core questions. Study Core first: its vocabulary (recover, recycle, reclaim, de minimis, small appliance) shows up again in every technical section.

Who gives the test

EPA does not test you. Tests are specific to the equipment type and must be given by an EPA-approved certifying organization. EPA lists them on its Certification Programs for Section 608 Technicians page. That page notes that many programs have testing locations across the country, some offer remote or online testing, and most Type I programs offer on-site testing, with mail-in Type I programs marked in the table.

Two more facts from the same EPA pages that surprise people:

  • EPA states that it does not review or approve any training or preparatory programs or materials. No study site, including this one, is "EPA approved."
  • EPA does not issue certification cards. Your certifying organization does.

The passing score

Appendix D sets the numbers:

FormatPassing score
Closed-book Type I, Type II, Type III and Universal tests70 percent
Type I tests in the mail-in format84 percent

Source: EPA Section 608, Appendix D to Subpart F, section (d).

On a 25-question section, 70 percent works out to 17.5, so in practice that means 18 correct. On a 50-question test it is 35, and on 100 questions it is 70. That is simple math, not an extra rule.

What the regulation text does not spell out is exactly how a certifying organization applies the 70 percent to each 25-question section on its score report. Ask your organization how it reports Core and each type separately before test day, especially if you plan to build up to Universal over several sittings.

Closed book, proctors and ID

For Type II, Type III and Universal, Appendix D requires a closed-book, proctored test, given in a secure environment. A few rules from the same appendix show how seriously the security is taken:

  • Programs must use more than one version of the test at each testing event, with questions chosen at random.
  • Proctors must not know in advance which questions are on the tests they give.
  • There must be at least one registered proctor for every 50 people testing at the same time at a site.
  • Proctors check your identity with photo ID. After the test they collect all test forms, answer sheets, scratch paper and notes.

Type I is the exception. Organizations that certify only Type I may use an on-site format or a mail-in format. The mail-in Type I has the higher 84 percent passing score, and Appendix D says a mail-in Type I test cannot be used toward Universal certification. EPA's certification page adds a related rule: Core tests taken as an open-book exam cannot be used to get Universal. For Universal, the Core must be taken as a proctored exam.

Building up to Universal

Appendix D allows Universal to be taken all at once, or by combining passing scores on separate Type I, Type II and Type III tests. If you start with one type for a job and add the others later, that path is allowed, as long as each piece was taken in a format that counts. See whether Universal is worth it for how to decide.

If you need another language or an oral test

40 CFR 82.161 says programs should accommodate non-English speakers, and that an oral test may be given if you ask in writing at least 30 days before the exam and explain why. Ask early if this applies to you.

After you pass

  • Wallet card within 30 days. Appendix D, section (f), requires the program to issue it within 30 days of the test. It shows the program's name and EPA approval date, your name, the type of certification, a unique number that is not your Social Security number, and a statement that you passed the exam.
  • Keep a copy at work. Under 40 CFR 82.161, technicians keep a copy of their certificate at their place of business, until three years after they stop working as a technician.
  • Public lists. Since January 1, 2018, non-federal programs must publish online a list of technicians certified on or after January 1, 2017, with name, city at the time of testing, type and date. You may opt out.
  • No expiration. EPA states that Section 608 certification credentials do not expire. EPA can revoke or suspend a certificate for violations, and the rule reserves the right to require recertification in the future by notice in the Federal Register.

What this means for how you study

Because every test mixes 25 Core questions with 25 technical ones, a weak Core can sink a strong Type II. Split your time so Core gets real attention, then add the type you need. Our two-week study plan is built that way, and the free quiz scores Core and each type separately so you can see where you stand.

Frequently asked questions

How many questions are on the EPA 608 exam?

Each Type I, Type II and Type III test has 25 Core (Group I) questions and 25 questions from its technical group, so 50 in total. A Universal test has 25 Core and 75 technical questions, 25 for each type, so 100. Source: 40 CFR 82, Subpart F, Appendix D.

What score do I need to pass the 608?

Appendix D sets the passing score at 70 percent for the closed-book Type I, Type II, Type III and Universal tests, and 84 percent for Type I tests in the mail-in format. Ask your certifying organization how it reports results for each section.

Is the 608 exam open book?

Type II, Type III and Universal tests must be closed-book and proctored in a secure environment. Type I-only programs may use an on-site or a mail-in format, but a mail-in Type I test cannot be used toward Universal certification.

Does EPA give the 608 test?

No. EPA approves certifying organizations, and they give the tests and issue the cards. EPA does not issue certification cards and does not review or approve training or preparatory programs.

FREE QUIZ

12 original questions, scored by section

3 Core, 3 Type I, 3 Type II, 3 Type III. An explanation and rule reference after every answer.

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