EPA rules beginning 1/1/2018 put restrictions on purchasing refrigerant. Only EPA-certified technicians are allowed to purchase ozone-depleting substances (ODS) used as refrigerants.
Technicians have already been required to have this certification to conduct ac work.
Click “609 Training” if you need more information.
The Mobile Air Conditioning Society (MACS) provides online training with a lifetime certification for only $20.
Read more about the Update to Section 609.