When were all CFCs phased out in the US?

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Multiple Choice

When were all CFCs phased out in the US?

Explanation:
CFCs were eliminated in the United States on a schedule designed to protect the ozone layer. The 1990 Clean Air Act Amendments, aligned with the Montreal Protocol, set a freeze and then a complete phaseout of CFC production and import for most uses by 1995, with only limited essential-use exemptions allowed after that. That deadline is why 1995 is the correct year. Years like 1985 are too early (CFCs were still widely in use), 1990 reflects the start of the phaseout, and 2000 is after the mandated stop date.

CFCs were eliminated in the United States on a schedule designed to protect the ozone layer. The 1990 Clean Air Act Amendments, aligned with the Montreal Protocol, set a freeze and then a complete phaseout of CFC production and import for most uses by 1995, with only limited essential-use exemptions allowed after that. That deadline is why 1995 is the correct year. Years like 1985 are too early (CFCs were still widely in use), 1990 reflects the start of the phaseout, and 2000 is after the mandated stop date.

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