Free Tool
Free EPA 608 Practice Test
Prepare for your EPA 608 certification with practice questions covering all four sections — Core, Type I, Type II, and Type III. Study mode gives you feedback after each answer. Exam mode simulates the real test experience.
Free Practice Test
EPA 608 Certification Practice
Configure your test below. All four sections required for Universal certification.
Test mode
See feedback and CFR references after each question.
Sections to include
Select all four for Universal certification practice.
100 total questions across 4 sections • 25 per section • 70% required to pass each section
About EPA 608 Certification
EPA Section 608 certification is required under the Clean Air Act for any technician who works with refrigerants in stationary refrigeration and air conditioning equipment. Without certification, technicians cannot legally purchase refrigerants in containers larger than two pounds.
Who needs EPA 608 certification?
Any person who purchases, handles, or recovers refrigerants from appliances covered by Section 608 must be certified. This includes HVAC technicians, refrigeration mechanics, and anyone who maintains or services systems containing regulated refrigerants. Apprentices working under direct supervision of a certified technician may be exempt in some jurisdictions, but most employers require their own certification.
Core
Required for all certifications
Covers general regulations, environmental impact of refrigerants, recovery requirements, and record-keeping obligations under 40 CFR Part 82.
Type I — Small Appliances
Factory-sealed systems, 5 lbs or less
Household refrigerators, freezers, window AC units, and dehumidifiers. Covers recovery techniques for small sealed systems.
Type II — High-Pressure
R-22, R-410A, R-454B systems
Residential and commercial split systems, packaged units, heat pumps. The most common certification for HVAC technicians.
Type III — Low-Pressure
R-11, R-123 centrifugal chillers
Large commercial and industrial centrifugal chillers that operate below atmospheric pressure. Requires special handling to prevent air and moisture ingress.
How to get EPA 608 certified
Step 1
Study the material
Review 40 CFR Part 82 regulations and use this practice test to identify your weak areas across all four sections.
Step 2
Find a testing site
Locate an EPA-approved testing organization near you — vocational schools, HVAC suppliers, and online proctored options are all available.
Step 3
Pass and get certified
Score 70% or higher in each section. Your certification card is mailed within a few weeks. Certification never expires.
Key Facts About EPA 608 Certification
The EPA 608 certification exam requires a minimum score of 70% in each section to pass. Technicians who fail one section must retake only that section, not the entire exam.
Over 300,000 technicians take the EPA 608 certification exam annually, making it one of the most widely administered trade certifications in the United States.
EPA 608 certification does not expire, though regulations may change. Technicians should stay current on regulatory updates, particularly as new lower-GWP refrigerants are phased in under the AIM Act of 2020.
There are four certification types: Type I (small appliances) covering factory-sealed systems with 5 pounds or less of refrigerant, Type II (high-pressure) covering residential and commercial systems using refrigerants like R-22 and R-410A, Type III (low-pressure) covering centrifugal chillers operating below atmospheric pressure, and Universal certification which requires passing all three type-specific sections.
Technicians certified under Section 608 can purchase refrigerants in containers larger than two pounds without restriction. Uncertified individuals are limited to purchasing refrigerants in containers of two pounds or less, under 40 CFR 82.161.
Frequently Asked Questions
How many questions are on the EPA 608 certification exam?
The EPA 608 exam consists of a Core section and one or more type-specific sections. Each section typically contains 25 questions. Technicians seeking Universal certification must pass all four sections: Core, Type I, Type II, and Type III. This practice test mirrors that structure with 25 questions per section.
What score do I need to pass the EPA 608 exam?
The EPA 608 certification exam requires a minimum score of 70% in each section to pass. A passing score in the Core section alone does not grant certification — you must also achieve 70% or higher in whichever type-specific sections you are attempting. This practice test shows your score per section so you can identify weak areas before the real exam.
How much does the EPA 608 certification exam cost?
The cost of the EPA 608 exam varies by testing organization. Most proctored testing sites charge between $20 and $50 per attempt. Some vocational programs and employers cover the cost. The certification itself does not have a renewal fee — once you pass, you are certified for life, though you should stay current on regulatory changes.
Does the EPA 608 certification expire?
EPA 608 certification does not expire. Once a technician passes the exam, the certification remains valid indefinitely. However, the EPA does periodically update regulations under Section 608, so certified technicians should stay informed about changes to refrigerant handling rules, particularly regarding new lower-GWP refrigerants being phased in under the AIM Act.
What is the difference between EPA 608 Type I, Type II, and Type III?
There are four certification types: Type I covers small appliances — factory-sealed systems with 5 pounds or less of refrigerant, such as household refrigerators and window AC units. Type II covers high-pressure appliances, including residential and commercial split systems, packaged units, and heat pumps using refrigerants like R-22 and R-410A. Type III covers low-pressure appliances, primarily centrifugal chillers using refrigerants like R-11 and R-123 that operate below atmospheric pressure. Universal certification requires passing all three type-specific sections plus the Core exam.
Can I take the EPA 608 exam online?
As of 2024, the EPA has approved remote proctored online testing for Section 608 certification. Several approved testing organizations offer online exams that can be taken from home using webcam proctoring. You can find EPA-approved testing organizations on the EPA website. In-person testing at vocational schools, community colleges, and HVAC supply houses also remains widely available.
Ready to track your refrigerants?
Once you are certified, RefrigerantTrack helps you stay compliant — automatic usage logs, EPA threshold alerts, and audit-ready reports. Free for up to 5 systems.
Start Free — No Credit CardLast updated: April 2026
Researched by the RefrigerantTrack Research Team