On what date was the sale of CFCs and HCFCs restricted to technicians certified in refrigerant recovery?

The sale of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) was restricted to only those technicians who were certified in refrigerant recovery starting on November 14, 1994. This regulation was established to help mitigate the environmental impact of these substances, which have been linked to ozone depletion. The requirement for certification helps ensure that only qualified personnel handle these refrigerants, thereby reducing the risk of leaks and improper disposal, which could further harm the ozone layer. Understanding this timeline is crucial for technicians in the field, as it emphasizes the importance of being certified to handle certain refrigerants responsibly and in accordance with regulatory guidelines.