EPA Section 608 Certification
Section 608 of the Federal Clean Air Act requires that all persons who maintain, service, repair, or dispose of appliances containing ozone-depleting refrigerants be certified in proper refrigerant handling techniques.
The leading provider of EPA Certification.
In 2020, ESCO Institute introduced a groundbreaking solution to simplify preparation for the federally mandated Section 608 Refrigerant Certification exam — a new, innovative, interactive course that puts you in control of your learning journey.
With over 2 million credentials issued, ESCO is renowned for its user-friendly approach, cost-effectiveness, and adaptable testing options.
▶ Watch on YouTube (opens in new tab)Flexible ways to prepare.
Both the eLearning course and the training manual cover everything required to pass the Universal Exam.
eLearning Course
Interactive, self-paced online preparation for the Universal Exam.
Training Manual
The traditional printed preparatory manual.
Manual Preparatorio
The preparatory manual, available in Spanish.
Practice Exams
Accessible from any PC, laptop, tablet, or smartphone.
Find a testing center near you.
For information on a testing center near you, contact us at (800) 726-9696. You can also take the exam from the safety of your home.
Explore Testing OptionsVerify or replace your certification.
Look up your results, verify a certification, or order a replacement card or certificate.
Four ways to administer the exam.
Options on how to administer the closed-book certification exam, built for the varying needs of testing facilities.
Online Testing: In-Person
Registered proctors access the manual, PowerPoint, and P/T charts. Exams are purchased by PO or credit card with credits available immediately. Results appear as soon as the closed-book proctored exam is completed — candidates can print proof of certification on the spot, and the card is mailed the next business day.
Online Testing: Remote
The same as in-person online testing, except the proctor meets the candidate over a secure conferencing platform. Requires a computer or laptop with a web camera and microphone (no tablets or phones).
Online Testing: Third-Party
A registered proctor purchases online exam credits and assigns them to an approved third-party testing service that verifies identity and secure conditions, monitors the candidate and screen, records the session, and transfers results to the proctor portal. Requires a computer or laptop with web camera and microphone.
Paper Testing
ESCO provides registered proctors affiliated with full-time HVACR courses, wholesalers, and manufacturers a proctor kit with all testing materials at no charge. Exams are paid for when submitted for grading via PO, check, or credit card.