Latest Update of Section 608 has been posted below.

 Refrigerant Sales Restrictions

The sale of ozone-depleting refrigerant (such as R-11, R-12, and R-22) in any size container has been restricted to technicians certified either under the program described in Technician Certification above or under EPA's motor vehicle air conditioning regulations. The sales restriction covers ozone-depleting refrigerant contained in bulk containers, such as cans, cylinders, or drums.

The restriction excludes refrigerant contained in refrigerators or air conditioners with fully assembled refrigerant circuits (such as household refrigerators, window air conditioners, and packaged air conditioners), and HFC refrigerants (such as R-134a and R-410A).

- (this excerpt was taken from EPA website under the link:
http://www.epa.gov/Ozone/title6/608/608fact.html#salesrest