What type of certification is required to purchase refrigerant?
The following people can buy any type of ozone-depleting refrigerant under this sales restriction (for instance, R-11, R-12, R-123, R-22), except for "small cans" containing less than 20 pounds of R-12:
Technicians certified to service stationary refrigeration and air-conditioning equipment by a Section 608 EPA-certified testing organization; and
Employers of a Section 608 certified technician (or the employer's authorized representative) if the employer provides the wholesaler with written evidence that he or she employs at least one properly certified technician.
The following people can buy refrigerant found acceptable for use in a motor vehicle air conditioner (MVAC), including "small cans" containing less than 20 pounds of R-12:
Technicians certified to service motor vehicle air-conditioners by a Section 609 EPA-certified testing organization.
Does the sales restriction also apply to internet sales?
Yes, for refrigerant sales EPA considers persons selling via internet sites, auctions, classified ads, and other means as wholesalers who must comply with the recordkeeping requirements for sales of ozone-depleting refrigerant.
From this website
The Refrigerant Sales Restriction | Ozone Layer Protection - Regulatory Programs | US EPA
It is surprising that there isn't a full on ban as there is in Canada and Europe for usage/recharging systems with CFC refrigerants.
I guess when CFCs are banned only bandits will have CFCs...
