EPA Section 608 Certification

Section 608 of the US Federal Clean Air Act requires all persons who work with regulated refrigerants to be certified.

The EPA has approved of nearly 100 organizations to administer the exam and provided them an identical bank of test questions. However, more people have chosen to use the ESCO Institute's program than any other. Why? By keeping the program simple!

Training Manual

The ESCO preparatory manual contains all of the information on the Universal exam in only 12 pages. The book is clear, concise, and has helped us achieve an industry leading pass rate.

The manual is available in both English and Spanish. Additionally, it is available in an audio cd.

Click here for complete details in English.

Manual Preparatorio para EPA Seccion 608 (Spanish)

Audio CD-Rom.


Available to educators and trainers only, the PowerPoint correlates directly with the training manual. Each slide within the presentation contains speaker notes that are designed to aid the instructor through the presentation and provide additional talking points. Proctors can Login to purchase the PowerPoint. Additionally, HVACR educators and trainers can order this PowerPoint by calling 1-800-726-9696.

Paper Testing

ESCO Institute will provides schools and HVACR wholesalers with a proctor kit containing reusable exam books, answer sheets and postage paid return envelopes free of charge. Exams are paid for when they are submitted for grading by including a purchase order, check or credit card.

Online Testing Program

Online testing allows registered proctors to conduct the closed book exam online providing the test taker instant results.

  • Registered proctors login at ESCO Testing
  • The registered proctor can access an instructors PowerPoint, PT charts and a variety of resources
  • Online exams can be paid for by purchase order or credit card
  • Test takers receive instant results
  • Official documents mailed the next business day
  • Proctors can access detailed exam reports online

Proctors and Institutions

Proctors and Institutions can call or login to obtain their educational discount price.

Proctor Login

Contact Us

Free Practice Exams

To further aid persons in preparing for the exams, ESCO Institute offers practice exams free of charge. There is no software to install or download. Just have the person preparing for their exam visit the practice exam site and take free practice exams 24 X 7.

Click here for free practice exams.

For Additional Information

Feel free to contact us.

Technicians needing information on taking the exam, click here.

For a test site near you, call

Alaska and Hawaii call
877-394-5275 toll free.