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I thought CFCs like R-12 & R-502 were banned. How come they are still available?

April 26, 2017banned CFCs r-12

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I thought CFCs like R-12 & R-502 were banned. How come they are still available?

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Production of all CFCs was banned January 1, 1996. This ban does not end the use of CFCs for service replacement. Therefore reclaimed CFCs are still available as a replacement refrigerant, but supplies continue to drop.