A proposed regulation that would change how the sun protection factor (SPF) is listed on sunscreen labels has riled some in the cosmetics industry.

The Food and Drug Administration (FDA) has been considering regulations on sunscreen since 1978. More than 30 years later, in June of this year, the agency released a batch of proposed and finalized rules dealing with sunscreen, including one regulation for tighter labeling restrictions that bans misleading terms like “waterproof” and “sweat-proof” on the products. The label rules would go into effect by the summer of 2012.

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