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EPA Section 608 Certification

RSES – An Industry Leader

RSES has one of the largest EPA programs in the industry. RSES training materials have been used to certify nearly 200,000 technicians in accordance with Section 608 of the U.S. Clean Air Act.

Who Needs to be Certified?

Any person who performs maintenance, service, repair or refrigerant disposal that could be reasonably expected to release refrigerants into the atmosphere needs certification. The definition of "technician" specifically includes certain activities as follows:
  • Attaching and detaching hoses and gauges to and from the appliance to measure pressure within the appliance
  • Adding refrigerant to or removing refrigerant from the appliance
  • Any other activity that violates the integrity of the MVAC-like appliances, and small appliances

In addition, apprentices are exempt from certification requirements provided the apprentice is closely and continually supervised by a certified technician.

What are the Types of Certification?

The types of certification include:

Core A Technician must pass Core in order to earn any other certification.
Type–I For servicing small appliances.
Type–II For servicing or disposing of high-pressure appliances, except small appliances and MVACs.
Type–III For servicing or disposing of low-pressure appliances.
Universal The successful passing of all four sections of the examination.

Certification Preparation

RSES has the following training available to prepare individuals for the EPA Section 608 Certification examination:

2018 EPA Book

The Refrigerant Usage Certification – A Study Guide for Service Technicians (Second Edition) manual 

COMING SOON - The Refrigerant Usage Certification-Second Edition Instructor Review CD
COMING SOON - RSES eLearning - EPA Section 608 Certification Preparation online course




Where Can I Take the Exam?

Local Chapter - View the RSES Calendar of Events to find scheduled exams in your area or contact your local Chapter to obtain testing date and location information in your area.  
Online - RSES is working with ESCO to provide online proctoring through ProctorU. Need to take the 608 Refrigerant Handling exam today and do not have a proctor? Click here to get started. 

Need More Information?

For more information on EPA Section 608 certification training and testing, please call RSES at 800/297-5660 or 847/297-6464, or e-mail us at
Click here to find the results of your recent 608 certification exam
  • 1911 Rohlwing Road, Suite A
  • Rolling Meadows, IL
  • 60008-1397
  • Toll Free Phone: 800/297-5660
  • Phone: 847-297-6464

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