What is the passing score for the EPA 608 exam?

Appendix D to 40 CFR Part 82 sets a 70 percent passing score for the closed book sections and 84 percent for the open book Type I mail in option. In practice the closed book sections are commonly administered as 18 of 25 correct, which is 72 percent. Open book Core does not count toward the Universal certification.

Is this an official EPA study guide?

No. This is an independent, unofficial study aid. It is not affiliated with, endorsed by, or sponsored by the U.S. Environmental Protection Agency or any EPA approved certifying organization. It does not include or grant certification. All questions are original and written to the public federal regulation.

Free Practice Test · For HVAC Techs & Apprentices

Free EPA 608 practice test

Q: Is the EPA 608 exam hard?

The EPA 608 exam is not mechanically difficult, it is a recall test. Most people who fail do so because they mix up the recovery rules and pressure ranges across Type I, II, and III, or they underestimate the Core section. Structured practice with cited answers is what moves the pass rate, which is why this kit organizes every date, percentage, and threshold instead of leaving you to dig through a 200 page manual.

Q: What is on the EPA 608 Universal exam?

The Universal certification covers four sections of 25 questions each: Core, Type I (small appliances), Type II (high pressure), and Type III (low pressure), for 100 questions total. Core is mandatory and an open book Core does not count toward Universal. The questions test the federal refrigerant rules in 40 CFR Part 82, Subpart F.

Q: Are these EPA 608 practice questions current for 2026?

Yes. The questions and study material are current to 2026, including the AIM Act HFC phasedown (85 percent reduction by 2036), the 2025 sector GWP limits, A2L refrigerants such as R-32 and R-454B, and R-22 reclaim only status. Many older guides predate these rules, which is the most common reason candidates study outdated material.

Current to 2026

Most 608 guides are out of date. Start with 25 original questions, every answer cited to the actual rule, current to the AIM Act and A2L refrigerants, so you know you are studying the right material before test day.

Built from 40 CFR Part 82 Every answer cited Core + Type I, II, III Instant PDF, no app

EPA 608 Universal Exam Prep Kit, current to 2026

Why people fail

The 608 is a recall test. This kit gives you the prep to beat it.

It is rarely the mechanics that fail people. It is the dates, percentages, and thresholds, plus four sections that look alike. Here is where it goes wrong, and how the kit fixes each one.

Type I, II, and III blur together

The rules read almost the same across appliance types, the number one failure cause. The kit puts each rule next to the system it belongs to.

Core gets underestimated

Under-prepare for Core and you fail it, which voids every type you passed. The kit weights Core the way the exam does.

Free apps repeat the same 20 questions

Free pools run dry fast and miss the real format. You get 400 original questions in the real 25-per-section structure.

Old guides teach rescinded rules

Many guides predate the AIM Act and A2L refrigerants and still print rules that changed. This kit is current to 2026.

See the quality

Every answer cites the rule it comes from.

No guessing whether what you are studying is right. Here is a real question from the free sampler, with the cited explanation.

Why are HFCs like R-410A still regulated even though they have zero ozone depletion potential?

A. Because they contain chlorine

B. They have high global warming potential and are phasing down under the AIM Act CORRECT

C. Because they are flammable

D. They are no longer produced in the US

HFCs have zero ozone depletion potential because they contain no chlorine, but they carry high global warming potential and are phasing down under the AIM Act. This is current 2026 material that older guides miss. (40 CFR Part 84)

Get the free 25 question test

The full kit

Ready for the real exam?
Get the full Universal kit.

Everything you need to pass the Universal in one instant download. No app, no account, no subscription.

EPA 608 Universal Exam Prep Kit (Unofficial)

Complete study guide: Core, Type I, II, III, plus the current A2L and AIM Act materialvs $15 guides
400 practice questions + 3 full Universal mocks: explained, cited answersvs $19 to 47 banks
168 flashcards: swipe-to-flip deck plus Anki and Quizlet importsvs $37 decks
Cheat sheet + 7 day pass plan + glossary: the numbers and a schedulevs $10

Comparable valueabout $90+

$39 $24 Launch price · limited time sale

One-time payment. Instant download. No subscription, no account, no app. Less than three months of a $10 study app, and it is yours to keep.

Get the kit for $24 Try the free test first

What's inside

Everything in the full kit

The complete component set that takes you from cold to test ready, all instant PDFs.

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Study guideCore, Type I, II, III, plus the current A2L and AIM Act material.

[+]

4 section practice drills25 questions each with explained, cited answers.

[+]

3 full Universal mock exams100 questions each, the real exam length.

[+]

168 flashcardsSwipe-to-flip deck plus Anki and Quizlet import files.

[+]

Quick-reference cheat sheetThe numbers you must memorize, on one sheet.

[+]

7 day pass planA day-by-day schedule if you are on a deadline.

Plus a glossary and a Start Here guide so you know exactly where to begin.

How it compares

Why this beats the free apps and the Amazon books.

	Free apps	Amazon books	This kit
Current to 2026 (A2L, AIM Act)	Sometimes	Often outdated	Yes
Every regulatory answer cited	No	Rarely	Yes
Full Universal set (400 Q + 3 mocks)	Runs dry	Varies	Yes
Printable and works offline	No	Yes	Yes
One-time price, no subscription	No	Yes	Yes
Instant, no account or app	App install	Ships / Kindle	Yes

How it works

From download to test day

Download instantly

Get the PDFs the moment you buy. No waiting on an email, no login.

Study the guide

Work the numbers by section with the 7 day plan and the cheat sheet.

Drill the questions

Run the section drills, then the full mocks, then repeat the ones you miss.

Sit the exam

Walk in knowing the format, the pass mark, and which rule goes with which system.

Honest fit

Who this is for, and who it is not.

This is for you if

You are prepping the Universal (or a single type) and want current, organized material
You failed before and need to know your prep is actually right
You want to study offline or on paper, no app or subscription
You are on a deadline and need structure, not a pile of PDFs

This is not for you if

You want the official exam or the certification itself (this is prep, not the cert)
You want a subscription app with gamified streaks
You expect a guaranteed pass (no honest product can promise that)

Questions

EPA 608 exam, answered

Is the EPA 608 exam hard?

It is not mechanically difficult, it is a recall test. Most people who fail mix up the recovery rules and pressure ranges across Type I, II, and III, or they underestimate Core. Structured practice with cited answers is what moves the pass rate.

What is on the Universal exam?

Four sections of 25 questions each: Core, Type I (small appliances), Type II (high pressure), and Type III (low pressure), for 100 questions total. Core is mandatory, and an open book Core does not count toward Universal.

What is the passing score?

Appendix D to 40 CFR Part 82 sets 70 percent for the closed book sections and 84 percent for the open book Type I mail in option. The closed book sections are commonly administered as 18 of 25 correct, which is 72 percent.

Are the questions current for 2026?

Yes. The material covers the AIM Act HFC phasedown (85 percent reduction by 2036), the 2025 sector GWP limits, A2L refrigerants such as R-32 and R-454B, and R-22 reclaim only status. Older guides predate most of this.

Is there a Spanish version?

Yes. The full kit is also available in Spanish, with the same content built to the EPA's Spanish exam terminology. Ask or check the product page for the Spanish edition.

Is this official?

No. It is an independent, unofficial study aid, not affiliated with or endorsed by the EPA or any certifying organization. It does not include or grant certification. All questions are original and written to the public regulation.

How do I get the file?

The free sampler arrives by email as a PDF. The full kit is an instant download you receive immediately after purchase. Both are yours to keep and print.

Start with the free test.

See the question quality and the cited answers for yourself. If it helps, the full kit is one click away.

Email me the free EPA 608 test

Or get the full kit for $24. One-time, instant download, no subscription.