EPA 608 Practice Tests and Study Guides
Anyone who services equipment with regulated refrigerant in the U.S. needs Section 608 certification. Practise every section free, with explanations tied to 40 CFR Part 82, Subpart F.
Choose Your Test
Core
Required for every certification: ozone, rules, recovery, safety.
- 02EPA 608 Type I practice test25 Q
Small appliances sealed with 5 lb or less.
- 03EPA 608 Type II practice test27 Q
High- and medium-pressure systems, most AC and refrigeration.
- 04EPA 608 Type III practice test25 Q
Low-pressure appliances such as centrifugal chillers.
- 05EPA 608 Universal practice test105 Q
All four sections, 100 questions, scored by section.
EPA 608 Study Guides
- EPA 608 Card Lookup and Replacement
Why EPA has no national database and how to get a new card.
- EPA 608 Type I Study Guide
Small appliances, 80/90% recovery, piercing valves and disposal.
- EPA 608 Apprentice Exemption
Who counts as an apprentice, the two-year limit and supervision rules.
- EPA 608 Type III Study Guide
Low-pressure chillers: leak testing, purge units, recovery and charging.
- EPA 608 Type II Study Guide
Evacuation levels, major repairs, leak rates and leak detection.
- EPA 608 Universal Certification
What Universal covers, how it is scored and how to prepare.
- How Hard Is the EPA 608 Exam?
What makes each section tricky and how to prepare.
- EPA Refrigerant Sales Restriction
Who may buy refrigerant, the exemptions and what sellers must check.
- How to Get EPA 608 Certified Online
Choose a program, book a proctored test and get your card, step by step.
- How to Study for the EPA 608 Exam
A practical two-week plan with what to memorise for each section.
- Refrigerant Recovery Cylinder Rules
Fill limits, colour codes, requalification, labels and storage.
- Recover vs Recycle vs Reclaim Refrigerant
The legal definitions of the three Rs and when refrigerant can be reused.
- EPA 608 Core Study Guide
Ozone, the venting ban, the three Rs and the sales restriction.
- Refrigerant Types, Classes and A2L Safety
CFC, HCFC, HFC and HFO, plus ASHRAE 34 safety classes.
- EPA 608 Recovery and Evacuation Requirements
Required vacuum levels by appliance type.
- EPA 608 Leak Repair Rules
Leak-rate triggers, deadlines and verification tests.
- Refrigerant Safety and Cylinder Handling
PPE, cylinders and nitrogen.
- EPA 608 Exam Format, Cost and Passing Score
Sections, question counts and the 70% pass mark.
- EPA 608 Exam Changes for 2027
What the revised question bank adds.
- EPA 608 Frequently Asked Questions
Quick answers on certification, cards and the test.