Lost Refrigerant License

I had an R12 license and lost it. How can I get a new one?

It would really help if you knew who the original credentials came from. Looking at the EPA site, there are quite a few organizations that issue these certifications.

For the automotive (section 609) refrigerant certification, there are four large organizations that have done most of the certifications.

It's a good chance you certified with one these guys. These are the big ones anyway.

1. Automotive Service Excellence (ASE)
2. Mobile Air Conditioning Society (MACS)
3. International Mobile Air Conditioning (IMACA)
4. Mainstream Engineering

Out of these four, IMACA is no longer. Though, according to an IMACA press release from goHTSN ...

All 450,000 records of IMACA certified technicians have been transferred and all new certification testing and re-issuing of credentials will be handled by MACS Worldwide going forward. MACS Worldwide may be contacted by phone at 215/631-7020 by fax 215/631-7017.
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If you were certified through MACS or IMACA, just call the number above, or visit the MACS site. If your not sure who you tested with, you might find it easier to start over and take the test again with MACS, ASE, or Mainstream. If you take the test on-line with Mainstream, and pass (open book test), you can print a temporary certification while you wait for the official cert. to be mailed to you.