A2L Refrigerants and the 2026 Transition
This material is not on the EPA Section 608 exam. EPA's published test topics do not cover A2L refrigerants, the AIM Act, or the HFC phasedown, and A2L handling is a separate credential offered by certifying organizations. These 20 questions are here because the refrigerant transition is real work you will meet in the field, not because it will be on your 608 test. Nothing here is sampled into the exam simulation or the section drills.
Not on the EPA 608 exam. ASHRAE 34 safety classification, the AIM Act HFC phasedown, and handling R-32 and R-454B in the field. Kept separate on purpose so exam practice stays true to the published blueprint.
10 questions · 12 minutes · pass at 70%
Questions are sampled to mirror the official domain weighting. The timer starts when you begin; you can flag questions and return to them before submitting.
Work the other sections
Core (Group I) · Type I: Small Appliances · Type II: High-Pressure Systems · Type III: Low-Pressure Systems · or take the full 100-question simulation.