EPA 608 Practice Test 2026

Pass the EPA 608 certification exam the first time. EPA 608 practice test for Core, Type 1, Type 2, Type 3 and Universal, in English and Spanish, with explanations for every question – the study guide HVAC techs use in 2026.

Study for your EPA 608 certification exam.

Every HVAC and refrigeration technician in the U.S. needs Section 608 certification to work with refrigerants and to buy them. EPA 608 Prep helps you study for every part of the test – in English or Spanish.

OFFICIAL SOURCES (U.S. government)
• EPA – Section 608: https://www.epa.gov/section608
• 40 CFR Part 82, Subpart F: https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-82/subpart-F
• EPA – Technician certification: https://www.epa.gov/section608/section-608-technician-certification-requirements
The same links are on the home screen of the app and under every explanation.

■ ALL FOUR SECTIONS – 380+ QUESTIONS
• Core: ozone, the Clean Air Act, the 3 Rs, recovery, safety and shipping
• Type I: small appliances
• Type II: high-pressure systems – evacuation levels, leak repair rules
• Type III: low-pressure chillers – purge units, rupture discs, recharging
• Universal: a 100-question exam with all four sections

■ LEARN WHY, NOT JUST WHAT
• A short, clear explanation after every answer
• Based on the current Section 608 rules (40 CFR Part 82, Subpart F)
• Questions you miss come back until you get them right

■ REAL MOCK EXAMS
• 25 questions per section, 70% (18 of 25) to pass – just like test day
• See every mistake with the right answer and the reason

■ KNOW WHEN YOU'RE READY
• A readiness score for every section
• Study streak to keep you going

■ ENGLISH Y ESPAÑOL
• Switch the language of every question with one tap

No ads. No account. Your progress stays on your phone.
Premium (one-time purchase): all questions, unlimited mock exams and the Universal exam.

EPA 608 Prep is an independent study app. It is not affiliated with or endorsed by the U.S. EPA or any certifying program. It does not certify you – you still need to pass a proctored test with an EPA-approved certifying organization.