On what date was the sale of CFC's and HCFC's restricted to technicians certified in refrigerant recovery?

The sale of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) was restricted to technicians who are certified in refrigerant recovery as of November 14, 1994. This regulation was established as part of the Clean Air Act Amendments to reduce the emission of ozone-depleting substances. The requirement highlights the importance of proper handling and recovery of these refrigerants by trained technicians, which helps to minimize environmental impact and promote safe practices in the HVACR industry.

The other dates listed either precede this significant restriction or are not associated with the regulatory changes concerning the sale of these substances. Thus, the November 14, 1994, date stands out as a defining moment in the regulation of refrigerants, emphasizing the necessity for technician certification to ensure compliance with environmental standards and safe refrigerant management.