Since what date has it been illegal to vent substitutes for CFC and HCFC refrigerants?

The correct date indicating when it became illegal to vent substitutes for CFC (chlorofluorocarbon) and HCFC (hydrochlorofluorocarbon) refrigerants is November 15, 1995. This regulation emerged as part of the Clean Air Act Amendments, which aimed to phase out substances that deplete the ozone layer, including certain refrigerants.

On this date, regulations specifically prohibited the release of these harmful refrigerants into the atmosphere due to their significant environmental impact. This legislation played a vital role in addressing global warming and ozone depletion, aligning with international agreements such as the Montreal Protocol.

Understanding this date is crucial for technicians working with refrigerants, as it highlights the legal responsibilities in handling these substances, ensuring they are recovered and recycled rather than vented.