What date was technician certification mandated?

The technician certification for handling refrigerants was mandated as a result of the Clean Air Act Amendments of 1990, which specifically outlined the need for regulations governing the management of ozone-depleting substances. The effective date for the requirement that technicians must be certified to handle refrigerants was established as November 14, 1994. This date signifies when the regulations began to be enforced, requiring those who handle such materials to demonstrate adequate knowledge of the procedures and safety measures necessary to prevent environmental harm.

Understanding the historical context surrounding this date is critical, as it illustrates the shift toward greater environmental responsibility and the importance of proper refrigerant management. The requirement for certification also emphasizes the importance of technician training in recognizing and minimizing refrigerant leaks, which can be detrimental to the ozone layer.

While other options may reference important dates related to refrigerant management or certification requirements, November 14, 1994, is distinct in its role as the starting point for the mandate, positioning it as the correct answer to the question regarding the date technician certification was mandated.