May 15, 1993, was the deadline for manufacturers to put warning labels on products that contain or are manufactured with ozone-depleting substances. The warning is one of several provisions aimed at protecting the ozone layer that were added to the EPA’s Clean Air Act in 1990. It is meant to provide consumers with the means to distinguish between products that utilize ozone-depleting substances and those that do not. In the nails industry, manufacturers will be required to add warning labels to their wrap activators, though some say they plan to eliminate ozone-depleting chemicals altogether.

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