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EPA 609 Certification

Tech Tip

ASCCA Members, please see the message below regarding EPA 609 Certification from our Corporate Partner AutoZone:

Be aware of upcoming changes to R134a purchases. The EPA has recently mandated that purchases of R134a items, with a volume greater than 2 lbs., will be regulated by section 609 of the EPA Clean Air Act, beginning January 1st, 2018. This applies to any single item that has a volume over 2 lbs., but is primarily regarding 30 lb. cylinders of R134a. This regulation requires that any individual purchasing this item have a 609 certification from an EPA approved certifying company. A list of these approved companies can be found at We at AutoZone have found it easiest to work with MACS (Mobile Air Conditioning Society), ESCO Institute or Mainstream Engineering. This is due to these providers having online testing capabilities, with open book format. This certification/test generally costs around $20, depending on the certifying company. It consists of 25 questions, of which 21 must be answered correctly to pass.

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Click here to download Autozone's EPA 609 Tech Tip flyer.