This Study Guide is intended to help the user prepare for the EPA 608 Certification Examination and contains all the
information required to answer questions on the test. Information in this manual reflects the most current information
available at the time of publishing. The information is presented as material and concepts that the exam covers and is
not intended to be memorized. The more you understand the concepts behind EPA 608 regulations, the better you will do
on the exam and the better you will perform your job as it relates to refrigerants. This guide contains headings and
bolded words to help you find and remember important concepts and words. Review questions at the end will help quiz
you on what you just read. If you can answer the review questions, you should have no problem passing the test.
The EPA may from time to time update laws or change test questions based on new information. It is the responsibility
of the technician to comply with future new laws as established by the EPA, even if they differ from the contents of
This guide does not cover all EPA 608 regulation details, only those deemed important enough to be considered for
test questions by the EPA. Technicians should read the entire EPA regulations before handling refrigerants.
EPA 608 Study Guide