Get your EPA 608 Certification

Become a Clean Air professional in just one day.

We rely on a precious layer of ozone to protect us from deadly solar radiation. Because some of the liquids used in refrigeration and cooling are potentially harmful to the ozone layer. Section 608 of the US Federal Clean Air Act requires all persons who work with regulated refrigerants to be certified. 

ENTECH offers proctored testing for the EPA 608 Certification Exam. We'll provide a study guide to registered students to review prior to the exam. Please include your address when registering. Upon the successful completion of the test, students will receive a wallet card indicating EPA certification approval.

Certification types include:

  • Type I
  • Type II
  • Type III
  • Universal Certification

All testing is held at our facility at 10 Alcap Ridge, Cromwell, CT.

If you have questions about any of our programs, please call Kate Lennon at 860-893-0605, email her at, or fill out the form and we'll contact you.

EPA 608 Refrigeration Certification Exam

Successful testing certifies to EPA regulations as authorized under Section 608 of the Clean Air Act. Upon successful test completion, students will receive a certificate of completion and a wallet card indicating certification approval. • Type I is for technicians who primarily service household appliances with less than 5 pounds of refrigerant including refrigerators, room air conditioners, packaged terminal heat pumps, vending machines, and drinking water coolers. • Type II is for technicians who install and service systems that use a high pressure refrigerant such as HCFC 22 including split system air conditioners. • Type III is for technicians who install and service systems that use a low pressure refrigerant such as CFC 11 • Universal certification for work on all systems including the first three types. PLEASE FILL OUT ALL INFORMATION WHEN REGISTERING - WE NEED YOUR MAILING ADDRESS TO SEND OUT STUDY GUIDE. PLEASE STUDY IT AND BRING IT WITH YOU ON THE DAY OF YOUR EXAM! THERE WILL BE A REVIEW OF MATERIAL AND THEN YOU WILL TAKE THE EXAM THE SAME DAY.