EPA 608 Prep: HVAC Tests 2026

Pass the EPA 608 exam: Core, Type I, Type II and Type III. A practice test app built for working HVAC technicians and trade students.

WHY THIS APP IS DIFFERENT

• Built for the 2026 rules. Since January 1, 2026, the AIM Act leak-repair rule covers appliances with 15 lb or more of HFC refrigerant, with leak-rate triggers of 10, 20 and 30 percent. Residential and light commercial air conditioners and heat pumps are excluded. Questions on these changes carry a 2026 badge.

• Every answer names its source. Tap a regulation source to read the exact eCFR paragraph it cites, stored in the app (eCFR as of September 18, 2026), to check the answer yourself, even offline.

• Try before you pay. Study free, then pick a weekly or monthly plan. No trial that turns into a charge, no accounts, no ads.

• 100% offline. Study in the truck, the shop or the mechanical room.

WHAT'S INSIDE

• 1,100 exam-style EPA 608 practice questions: Core 300, Type I 250, Type II 300, Type III 250
• Study plan by exam date: daily new questions and retries, full practice exams at the end
• Study by topic, Smart Practice, Cram mode and saved questions
• Mock exams in the real format: 25 questions per section, 70% to pass, optional timer
• Universal mock: 100 questions, each section scored on its own
• Mistake review: missed questions return until you get them right
• Readiness: an estimated mock score per section, from your own answers
• Stats per section: seen, mastered, weak topics, mock results
• Pressure-temperature chart for 11 refrigerants, from R-410A to low-pressure R-123
• 12 summary cards with diagrams, from the refrigeration cycle to A2L refrigerants
• Numbers to remember, a 45-term glossary and search
• What changed in 2026, a certification guide, dark theme and an optional daily reminder

WHAT THE QUESTIONS COVER

Core: ozone depletion, the Clean Air Act and Montreal Protocol, refrigerant classes and A2L safety groups, recovery, recycling and reclamation, the sales restriction, cylinder safety and shipping, and the 2026 leak-repair rules.
Type I (Type 1): small appliances and their recovery requirements.
Type II (Type 2): medium-, high- and very high-pressure appliances, leak detection and repair under both rulebooks, evacuation levels, superheat and subcooling.
Type III (Type 3): low-pressure appliances such as chillers, recovery and evacuation levels, leak testing and repair.

HOW TO STUDY WITH IT

1. Read every explanation, not just the answer.
2. Follow the study plan; it brings back what you got wrong.
3. Pass a mock exam in the real format twice, then book the proctored exam.

WHO IT'S FOR

HVAC and refrigeration technicians preparing for EPA Section 608 certification, trade and apprenticeship students, and anyone refreshing before a retest.

FREE TO START

Try every study mode on sample questions in the Free tab, get 10 free questions a day from a set of 50 and one free Core mock exam. What changed in 2026, the certification guide and two examples each from the cards, PT chart, numbers and glossary are free too. A weekly or monthly plan unlocks all 1,100 questions, every study mode, unlimited mocks, the full PT chart, all 12 summary cards, the study plan and stats. Plans renew automatically until you cancel in Google Play.

OFFICIAL SOURCES

• U.S. EPA, Section 608 Technician Certification: https://www.epa.gov/section608/section-608-technician-certification
• 40 CFR Part 82, Protection of Stratospheric Ozone (eCFR): https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-82
• 40 CFR Part 84, Phasedown of Hydrofluorocarbons, AIM Act rules (eCFR): https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84

This app is a study aid. For official requirements, refer to the U.S. EPA sources above.

StudyRig is an independent publisher and is not affiliated with or endorsed by the U.S. Environmental Protection Agency (EPA) or any certification provider.
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