EPA 609 Certification Prep
MVAC Practice Test & Reference
Free · Designed for iPad. Not verified for macOS.
50 Section 609 MVAC questions with CFR + SAE citations, two full mock exams, and a complete refrigerant reference. Fully offline. 100% free, no ads, no purchases.
Preparing for your EPA Section 609 MVAC certification? EPA 609 Certification Prep gives you focused practice for the 25-question, open-book motor-vehicle air-conditioning exam — with clear explanations, CFR and SAE citations, and an offline reference library built for the shop.
WHAT'S INCLUDED:
Practice Mode
- 50 multiple-choice questions covering Section 609 regulations, refrigerant identification, recovery equipment, leak detection, evacuation, retrofits, and hybrid / EV high-voltage safety.
- Every answer paired with an explanation and a regulation or SAE citation (40 CFR Part 82 Subpart B, SAE J2788 / J2843 / J2851, and more).
- Drill Core 609 topics or MVAC topics separately, or sweep across the whole bank.
Mock Exams
- Mock 1 — 25 questions, open-book format matching the real Section 609 exam.
- Mock 2 — advanced MVAC scenarios: R-1234yf A2L handling, POE oil on hybrid compressors, retrofit compliance, evacuation to 500 microns.
- Question overview grid + flag-for-review during the exam.
- Section-by-section pass / fail diagnostic against the 84% EPA cutoff.
Reference Library (always free)
- Refrigerants: R-12, R-134a, R-1234yf, R-744, R-152a — with ODP, GWP, ASHRAE safety class, and service-port quick-reference.
- Regulations: Section 609, Clean Air Act, Montreal Protocol, SNAP program, AIM Act.
- Recovery Equipment: SAE J2788 / J2810 / J2843 / J2851 / J2845 standards plus the full MVAC service sequence.
- Leak Detection: SAE J2791 / J2913 detector standards, common MVAC leak points, repair philosophy.
- Safety: refrigerant exposure limits, A2L / A2 flammability, hybrid / EV high-voltage service, PPE, first aid.
WHO IS IT FOR:
- Automotive technicians preparing for Section 609 MVAC certification
- Dealership service advisors needing refrigerant-handling authority
- Vocational students and automotive-trade instructors
- Independent mechanics servicing R-134a and R-1234yf systems
WHY TECHS LOVE IT:
- Fully offline — works in the shop, on the lot, or at a roadside service.
- No ads, no tracking, no subscription traps.
- Real citations on every answer so you can verify the source.
- Completely free — every question, both mock exams, and the full reference library. No purchase, no account.
- Clean UI designed for one-handed use on a phone next to the car.
100% FREE:
Every practice question, both mock exams, and the full reference library are completely free — no in-app purchases, no subscription, no ads, no account.
Practice questions are modeled on the Section 609 certification exam and the public 40 CFR Part 82 Subpart B regulations. This app is a study aid; certification is awarded by an EPA-approved 609 test administrator.
Download EPA 609 Certification Prep and master the MVAC exam in your pocket.
Ratings & Reviews
• Fixed: the first practice session after opening the app could show "No Questions". It now opens your questions straight away.
The developer, Shanghai Sheyuan Network Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shanghai Sheyuan Network Technology Co., Ltd.
- Size
- 1.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Sheyuan Inc.