Pass Your EPA 608 Certification — Fast, Confident, and Fully Prepared
The only 2026-updated study guide trusted by 10,000+ HVAC technicians. Master Core, Type I, Type II, and Type III exams with realistic practice tests and proven strategies.
Why HVAC Technicians Choose Our Guide
Built by HVAC professionals, for HVAC professionals. Every feature is designed to help you pass faster.
100% Exam Coverage
Every topic tested on the 2026 EPA 608 exam is covered in detail. From refrigerant safety to recovery requirements, nothing is left out.
Realistic Practice Tests
Our question bank mirrors the actual exam format. Timed tests, instant scoring, and detailed explanations help you learn faster.
Always Up-to-Date for 2026
EPA regulations change. Our content is reviewed and updated for the latest 2026 requirements so you never study outdated material.
Understand Your EPA 608 Exam Options
The EPA 608 certification has four exam types. Each one tests different skills and knowledge areas. Here's what you need to know.
Small Appliances
For servicing refrigeration appliances containing 5 lbs or less of refrigerant. Covers recovery requirements, safety, and proper techniques for small systems like domestic refrigerators and window AC units.
Practice NowHigh-Pressure Systems
For high-pressure appliances like residential AC and heat pumps. Tests knowledge of recovery, evacuation, and leak repair for systems using HCFC-22, R-410A, and similar refrigerants.
Practice NowLow-Pressure Systems
For low-pressure appliances like chillers and commercial refrigeration. Covers CFC-11, CFC-113, CFC-123, and other low-pressure refrigerant management.
Practice NowAll Types
The gold standard. Passing all three sections (Core + Type I + Type II + Type III) earns you the Universal certification, making you eligible to service any appliance.
Practice NowNeed to Focus on a Specific Section?
Jump directly to targeted practice tests for the section you need most. Each path includes topic-focused questions, detailed explanations, and progress tracking.
Interactive P-T Chart
Master refrigerant pressure-temperature relationships with our interactive P-T Chart tool. Essential for the EPA 608 exam and real-world HVAC work.
Open P-T Chart ToolFrequently Asked Questions
Everything you need to know about the EPA 608 certification.
Ready to Ace Your EPA 608 Exam?
Join thousands of HVAC professionals who prepared with our guide and passed on their first attempt.
Confused about the rules? Read our Comprehensive 2026 EPA 608 Guide