Posted 6/28/2026 10:20 (#11686794 - in reply to #11686765) Subject: RE: r-134-a license
Online testing through MAC or ASE is the best way, cheap and easy. The online test consists of video and a test. The test has hyperlinks taking you to the text with the answer. Basically impossible to fail.
Google EPA 609 certification.
INDY
r-134-a license
