Section 608 EPA Certification

Section 608 EPA Certification Program

Over 1 million strong and growing!

Section 608 of the Federal Clean Air Act requires that all persons who maintain, service, repair or dispose of appliances that contain regulated refrigerants be certified in proper refrigerant handling techniques.

Since our approval in 1993, ESCO has grown to become the largest and most recognized EPA Section 608 certification provider.

While the EPA has provided all approved programs an identical bank of test questions, more of your peers have chosen the ESCO program over any other.

Why is ESCO the #1 Provider of EPA Certifications?

  • Testing materials are supplied FREE OF CHARGE to registered proctors at schools and wholesalers
    (Other organizations may be required to pay a security deposit)
  • Exams are paid for when they are submitted for grading
  • We offer both traditional paper testing and online testing with instant results
  • Preparatory manual and exams are available in English and Spanish
  • 12 page preparatory manual containing everything on the closed book exam

Preparatory Manual

The ESCO EPA preparatory manual is the simplest way to prepare for the Universal exam.

This 12-page manual contains all of the information on the Universal exam.

Audio CD

An audio CD of the manual is available to help prepare for the EPA certification exam.

Take a Free Practice Exam

Free Practice Exams

Any day, any time, ESCO offers online practice exams FREE OF CHARGE

Anyone with access to a smartphone, tablet or computer can test their knowledge anytime from anywhere. Because the exams are online, there is no software to install or download.

Instructor Resources

For proctors conducting preparatory classes, a PowerPoint is available that includes "Speaker's Notes" and is designed to keep the program on track.

This presentation is available to proctors FREE OF CHARGE from the proctor login section of our website.

Testing Choices

ESCO understands that everyone has different testing needs. That is why we offer a variety of programs; paper testing or online, pre-paid or pay as your go, in English or Spanish.

Online Testing

Online testing allows proctors to test whom they want, when they want.

There is no need to purchase or store supplies, simply log in and conduct online exams as needed. Persons taking the exam receive their test results instantly.

Paper Testing

If you prefer traditional paper testing, we supply schools and wholesalers with a proctor kit FREE OF CHARGE (Other organizations may be required to pay a security deposit).

The kit contains: reusable exam books, answer sheets and postage paid envelopes. Paper exams are paid for when submitted for grading by including a purchase order, credit card or check.

Becoming a Proctor is Easy!

HVACR wholesalers, educators and trainers interested in proctoring exams should email their completed proctor application to or fax it to 1-800-546-3726.

Click here to learn more