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International Automotive Technicians Network
Re: A/C CERTIFICATION
Posted to Industry Issues Forum on 12/7/2017 2 Replies

I still have my old 609 card for R-12. However in order to not get caught up in details I went ahead and took the MACS online class. My new card says I'm good for R-12, R-134a, and HFC1234yf.

The shop's refrigerant supplier has my certification on file. Login to read more.

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