The activists "say people deserve to know whether the products they use to wash their dishes and clean their homes could be harmful," said New York lawyer Keri Powell, an attorney for Earthjustice, a nonprofit public interest law firm.
The lawsuit is being filed on behalf of six state and national environmental and health groups, including the Sierra Club and American Lung Assn. in New York.
Responding to the lawsuit, the Soap and Detergent Assn. expressed disappointment that activist groups were "using an arcane New York state regulation as a way to disparage cleaning product formulators whose products are used safely and effectively by millions of people every day."