Environmental and public health groups have sued eight manufacturers and retailers of fish oil supplements sold in California under the state Safe Drinking Water and Toxic Enforcement Act of 1986 (Prop. 65) alleging that the fish oil supplements contain high levels of polychlorinated biphenyls (PCB) and require warning labels. Manthey v. CVS Pharmacy, Inc., No. 10-497334 (Cal. Super. Ct. filed 03/02/10). In addition to CVS Pharmacy, defendants include General Nutrition, Inc.; Omega Protein, Inc.; Rite Aid Corp.; Now Health Group, Inc.; Pharmaxite LLC; Solgar, Inc.; and Turnlab Corp. Prop. 65, a voter initiative, requires that businesses provide clear and reasonable warnings on products the state has identified as a carcinogen or reproductive toxicant. California listed PCBs as a carcinogen in the late 1980s and as a reproductive toxicant in 1994.