What date marks a significant regulatory change in the management of refrigerants?

The date of November 14, 1994, is significant because it marks the implementation of the regulations that were established under the Clean Air Act Amendments of 1990 regarding the management of refrigerants. This legislation aimed to phase out the production and consumption of substances that deplete the ozone layer, including many hydrofluorocarbons (HFCs) and chlorofluorocarbons (CFCs) commonly used in refrigeration and air conditioning systems.

On this date, the Environmental Protection Agency (EPA) finalized the regulations that set forth requirements for the proper handling and disposal of refrigerants, which include training technicians to manage refrigerants responsibly to minimize leaks and emissions. This regulation has had a lasting impact on how refrigerants are managed in the industry and has led to changes in practices and technician certification requirements, making it a pivotal moment in the regulatory landscape.

Other options pertain to different dates that do not involve significant regulatory changes regarding refrigerants or relate to earlier or later regulations that did not effectuate this specific change in refrigerant management practices.