Can You Take the EPA 608 Test Online?

All of them, through the right channel.

EPA's approved-program list marks certifying organizations that offer remote testing, and their exams cover the same sections you would sit in a testing center: the Core section plus Type I, Type II, and Type III — or all three types together as Universal.

What changes online is not which sections exist but how they are supervised.

Type II, Type III, and Universal remain closed-book, proctored tests given in a secure environment by an EPA-approved certifying program — and within Universal, the Core is proctored too, because EPA states a Core taken open book cannot be used to earn Universal.

Only organizations offering solely Type I certification — the small-appliance credential — may use an open-book format, on-site or by mail-in.

Certification	What it covers	Test format
Type I	Small appliances — 5 pounds or less of refrigerant, factory-sealed	Open book on-site or by mail-in (Type I-only orgs); closed book, proctored as part of Universal
Type II	Medium-, high-, and very-high-pressure appliances — the category residential split-system AC falls in	Closed book, remotely proctored
Type III	Low-pressure appliances such as chillers	Closed book, remotely proctored
Universal	All three types — 100 questions	Closed book, remotely proctored

The exam itself is identical either way: at least 25 questions from the core group plus at least 25 from each type section, with the Universal test running 100 questions.

Passing scores do not move for the online route either — 70 percent for the closed-book Type I, Type II, Type III, and Universal tests, and 84 percent for mail-in Type I.

One constraint decides most people's route: the open-book options do not stack toward Universal.

A mail-in Type I pass cannot count toward Universal certification, and neither can an open-book Core — Universal requires the proctored versions.

If Universal is your goal, you want a remotely proctored exam from an approved program, not the open-book format.

If you have not yet picked between the single types and Universal, the choice drives the format you need — our guide to EPA 608 certification walks through what each type covers and who needs which.

The rule travels with the test.

Whether you sit in a proctor's room or at your own desk, the Type II, Type III, and Universal exams — and Type I when taken as part of Universal — must be closed-book and proctored in a secure environment by an EPA-approved certifying program.

Remote delivery satisfies the proctoring requirement; it does not remove it.

The proctor's job starts with identity.

Proctors must verify each test-taker's identity with photo ID — a driver's licence, government ID, passport, or military ID all serve.

How each organization runs the remote setup — webcam position, browser software, room scan — is the part EPA does not prescribe, and our research did not confirm the mechanics of individual organizations' remote tests.

Ask the organization what equipment and environment they require before test day, and treat the setup list they send you as the authority for their exam.

After the test, the timeline is fixed by the rule: certifying programs must tell you your results and issue a standard wallet-sized card within 30 days of the test.

Treat 30 days as the legal ceiling rather than a typical wait, and note who sends the card — the certifying organization does, never EPA.

Type I is the small-appliance credential: it covers maintaining, servicing, and repairing appliances fully manufactured, charged, and hermetically sealed in a factory with 5 pounds or less of refrigerant — household refrigerators, window and portable air conditioners, PTACs, dehumidifiers, vending machines, and water coolers.

For that one section, EPA's rules let organizations that offer only Type I certification administer the test on-site or as a mail-in, open-book exam.

The open-book option belongs to the standalone Type I route — when Type I is taken as part of Universal, it is a closed-book, proctored test like every other section.

The option comes fenced in.

The pass mark is higher: 84 percent for mail-in Type I against 70 percent for the closed-book tests.

And a mail-in Type I pass cannot be used toward Universal certification.

So the open-book format relaxes the supervision, and the rule answers with the higher pass mark and the wall against Universal.

If your goal is a standalone Type I card for small-appliance work, the open-book route exists for exactly that.

If you plan to work on bigger systems, book the proctored exam from the start.

EPA writes the rules and the question bank, but it runs no exams and issues no cards.

The tests are given and the wallet cards are issued by EPA-approved certifying organizations — trade associations, unions, and schools among them, with names on the list including ACCA, ESCO Institute, NATE, the PHCC Educational Foundation, RSES, the United Association, and Mainstream Engineering.

For online testing, EPA's approved-program list (updated August 20, 2026) marks two groups:

• Remote testing available: AC/C Tech, CHEERS, ESCO Institute, International Development Institute, Interplay Learning, Licensed Trades of America, Mainstream Engineering, National Certification Institute, Trade Masters Online, The Training Center, Two Brothers Air & Heat, and Video General.
• Online testing only: Faraday EPA Certification, SkillCat, and Solar One.

That is fifteen programs in total, and it is a list that moves — EPA added three programs in a May 22, 2026 update alone.

Check the current page at epa.gov/section608 before you book rather than relying on this snapshot.

Each organization also runs its own online process, so compare setup requirements directly.

What the list does not settle is price and terms.

EPA does not regulate what each organization charges, and our research did not confirm individual organizations' prices, retake policies, or card turnaround times — each sets its own.

Check the fee schedule on your chosen organization's page before you commit.

Fast online certification is a market with shortcuts in it, and the checks that catch them come straight from EPA's own rules:

• "EPA-approved course." EPA does not review or approve any 608 training or preparatory programs or materials — only the certifying (testing) programs are approved. A prep course can help you study, but "EPA-approved" on a course or study guide is not a real designation.
• "Your card comes straight from EPA." EPA does not issue 608 certification cards and cannot replace them — the certifying organization issues the card. An offer promising an EPA-issued card has the issuer wrong.
• "No test required." The rule requires passing an exam from an EPA-approved technician certification program. Certification without an exam is not Section 608 certification.
• The organization is not on EPA's list. Only programs on EPA's approved list can certify technicians under Section 608. Check the name against EPA's page before you pay anything.

Already certified — or checking a card a candidate handed you?

There is no EPA-run national lookup.

Since January 1, 2018, each certifying program has been required to publish online, updated at least annually, a list of the technicians it certified on or after January 1, 2017, though technicians may opt out.

The issuing organization's list is the verification path.

One fear worth retiring: if your certifying organization stops operating, your card does not die with it.

Cards issued while a program was approved remain valid even after the program stops testing.

If you are getting certified to start applying, the openings are on our HVAC technician jobs board.

This page is career information, not legal advice. Confirm current certification requirements with EPA's Section 608 program and your chosen certifying organization.