This certification exam is designed to educate HVAC technicians on various methods and refrigeration products, providing a safe and eco-friendly outcome with each service. Each section of this test includes 25 questions, equating to 100 questions for complete certification.

Individuals working to earn their 608 certifications must do so under the guidance of an EPA-approved certifying organization such as Mainstream Engineering. 

Yes! Since the Type I Certification is open book, you can study and take your test online right now. If the appliances you are working on exceed five pounds of refrigerant, the test will need to be proctored. For additional certifications, refer to our wholesaler list above to find a proctor in your area.

You can expect multiple-choice questions for each certification exam. This format includes four possible answers. The EPA 608 certification relies on a random assortment of questions pulled each second from a pool of roughly 350 potential questions. You can rely on Mainstream Engineering’s study materials to best prepare for the test.

Section 608 certifications do not expire. If you lose your certification card; however, re-testing might be required. Contact us to see how you can retrieve your 608 card.

Each section requires a minimum passing grade of 72% per section or 84% in the open-book format. If you are worried about your upcoming exam, you can use our free software for quality training materials and interactive tools.

For those who do not study, passing the EPA 608 exam could be challenging. Technicians who adequately prepare and study will likely pass the exam without too much worry. Be sure to review your study manual and memorize the proper information. This will help to reinforce your in-field services later on. 

The difference in verbiage could cause some confusion, but these two terms are interchangeable in EPA terminology. AC systems rely on refrigerants to complete operations and therefore fall under the umbrella of EPA 608.