A California appellate court has ruled the state’s anti-toxic chemicals law, Proposition 65, cannot be used to require labeling of meat approved by the federal government. The ruling came about after the American Meat Institute and National Meat Association sued Whitney Leeman, an attorney who specializes in dioxin research, for sending violation notices to eight meat processors and sellers. Leeman claimed that under Prop. 65 slaughterhouses had to notify the public of carcinogens in meat. But the Fourth District Court of Appeal in San Diego