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Safety & Trades Practice Questions

EPA 608 Practice Test Practice Questions

EPA Section 608 Technician Certification — Practice with free EPA 608 sample questions covering Core, Type I, Type II, and Type III topics -- refrigerant types, recovery requirements, leak detection, safety, and EPA regulations. Each question includes a detailed explanation so you actually learn the material, not just memorize answers.

100
Total Questions
No time limit (typically 2 hours)
Time Limit
70% per section
Passing Score
$20-$40
Registration Fee

Free Sample Questions

Here are 5 free sample questions from our full bank of 400+ EPA 608 Practice Test practice questions. Try them out below — click "Show Answer" to reveal the correct response and explanation.

1

Which of the following refrigerants is classified as an HFC (hydrofluorocarbon) and contains no chlorine?

AA) R-22
BB) R-12
CC) R-134a
DD) R-502
2

Under EPA Section 608, what is the required recovery level (in inches of mercury vacuum) for a high-pressure appliance with a full charge of MORE than 200 pounds when using recovery equipment manufactured after November 15, 1993?

AA) 0 inches Hg vacuum
BB) 4 inches Hg vacuum
CC) 10 inches Hg vacuum
DD) 15 inches Hg vacuum
3

A technician is checking a system for refrigerant leaks. Which leak detection method is generally considered the MOST sensitive for finding very small leaks?

AA) Soap bubble solution
BB) Electronic leak detector
CC) Visual inspection for oil stains
DD) Listening for hissing sounds
4

When working with refrigerants, which of the following safety practices is REQUIRED to protect against frostbite and chemical burns?

AA) Wear safety glasses and butyl-lined gloves
BB) Work only in fully enclosed rooms with no ventilation
CC) Use cotton gloves and ordinary sunglasses
DD) Skip PPE if the system is at low pressure
5

Under EPA regulations, what is the maximum allowable annual leak rate for a commercial refrigeration system with a full charge of 50 pounds or more before repair is required?

AA) 5%
BB) 10%
CC) 20%
DD) 35%

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About the EPA 608 Practice Test

Format & Structure

Total Questions
100
Time Limit
No time limit (typically 2 hours)
Format
Multiple choice

Scoring & Cost

Passing Score
70% per section
Registration Fee
$20-$40

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Frequently Asked Questions

What is the EPA 608 certification?

EPA Section 608 certification is a federal credential required by the Clean Air Act for anyone who maintains, services, repairs, or disposes of equipment containing regulated refrigerants. If you handle HVAC or refrigeration systems professionally, you need it. The certification is administered through EPA-approved organizations and tests your knowledge of refrigerant handling, recovery, and environmental rules.

What are the four sections of the EPA 608 test?

The test has a Core section plus three specialty types. Core covers general environmental and regulatory knowledge. Type I is for small appliances (window units, vending machines). Type II covers high-pressure systems like residential and commercial AC. Type III is for low-pressure systems such as industrial chillers. Pass Core plus all three types and you earn Universal certification.

What score do I need to pass the EPA 608?

You need 70% on each section to pass. That's 18 correct out of 25 questions per section. Sections are scored independently, so you can pass Core and Type I but fail Type II -- and you only need to retake the section you failed. Some test administrators may have slightly different policies on retake timing.

How much does the EPA 608 certification cost?

Costs typically range from $20 to $40 depending on the testing organization and whether you're taking a proctored or open-book version. Some training providers bundle prep materials with the testing fee. If your employer is covering it, ask which provider they prefer -- pricing and format vary quite a bit between ESCO, RSES, Mainstream Engineering, and others.

How long is EPA 608 certification valid?

EPA 608 certification is valid for life. It does not expire, and there's no continuing education requirement to keep it active. Just hold onto your wallet card -- you'll need to show it when purchasing refrigerants or when employers verify your credentials.

What's the best way to study for the EPA 608?

Start with a free practice test to find your weak spots. Most folks struggle with the recovery requirements table (those evacuation levels in inches of mercury) and the leak rate percentages for different system types. Make flashcards for the numbers, watch a few YouTube walkthroughs of recovery procedures, and run through 50-100 practice questions per section. A focused week of prep is usually enough if you already work in HVAC.

Can I retake the EPA 608 if I fail?

Yes. Retake policies vary by testing provider, but most let you retake failed sections fairly quickly -- sometimes the same day, sometimes after a short waiting period. You generally only retake the section(s) you failed, not the whole test. Expect to pay a retest fee, though it's usually less than the original cost.

Is the EPA 608 test open book?

It depends on the section and the provider. The Type I test is often offered as an open-book mail-in version, while Type II, Type III, and Core are typically proctored and closed-book at an approved testing center. Even when open book, the time pressure makes preparation essential -- you won't have time to look up every answer.

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