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EPA 608 Practice Test 2026: 50 Questions With Answers (Core, Type I, II, III)

Audio from the Open Exam Hub video of the same name; the video shows the numbers and practice questions on screen.

EPA 608 practice test: 50 original EPA Section 608 exam questions with answers and explanations, covering all four sections: Core (ozone depletion, Clean Air Act and Montreal Protocol, recover/recycle/reclaim, cylinders, safety, sales restriction), Type I small appliances (5 lb or less, 90%/80% or 4 in. Hg recovery), Type II high-pressure (leak testing, evacuation levels, major repairs, leak repair triggers, psig to psia) and Type III low-pressure chillers (purge units, 10 psig leak test, vapor before liquid, 25 mm Hg absolute). As of October 2026: technicians who maintain, service, repair or dispose of equipment that could release refrigerant must be certified under Section 608 of the Clean Air Act; tests are given by EPA-approved certifying organizations; each section has 25 questions and certifying organizations require 70% (18 of 25) to pass each section; Universal is 100 questions; Type II, Type III and Universal tests are closed book and proctored; and EPA says Section 608 certification does not expire. Our 40-of-50 target is a planning estimate, not an official score. Questions are original, not real exam questions. Not affiliated with the U.S. EPA or any certifying organization.

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Chapters
0:00 EPA 608 practice test
2:49 Section 1: Core: Questions 1 to 13
11:15 Section 2: Type I Small Appliances: Questions 14 to 25
19:40 Section 3: Type II High Pressure: Questions 26 to 38
28:21 Section 4: Type III Low Pressure: Questions 39 to 50
35:44 Score yourself

Exam facts are from the official U.S. EPA (Section 608 technician certification) pages as of 2026-10-22. Fees and rules can change, so confirm on the official site before you enroll. Open Exam Hub is an independent study resource, not affiliated with the U.S. EPA or any certifying organization. Practice questions are not from a real exam. Narration is an AI-generated voice.

Music
"Fresh Air" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0

"Carefree" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0

"Reminiscing" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0

"Friday Morning" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0

Sound effects: Kenney (kenney.nl), CC0.

Images
cylinder: "Refillable refrigerant cylinder" by Лобачев Владимир, CC BY-SA 4.0, via Wikimedia Commons commons.wikimedia.org/wiki/File:Refillable_refrigerant_cylinder.png
compressor: "Reciprocating Compressor from an Industrial Refrigeration System" by Endora6398, CC BY-SA 4.0, via Wikimedia Commons commons.wikimedia.org/wiki/File:Reciprocating_Compressor_from_an_Industrial_Refrigeration_System.jpg
windowac: "Air Condition Unit Interior View USA" (author not provided), Public domain, via Wikimedia Commons commons.wikimedia.org/wiki/File:Air_Condition_Unit_Interior_View_USA.jpg
chiller: "Chiller" by P199, Public domain, via Wikimedia Commons commons.wikimedia.org/wiki/File:Chiller.jpg

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