Gov Jerry Brown signed a law to ensure that olive oil from California is labeled properly, said the Vacaville Reporter. If the label says California, all of the oil must come from olives grown in the state, says state Sen Lois Wolk, who sponsored the legislation. “There must be truth in labeling,” said Wolk. The updated law says that if the label refers to a region of California, 85 percent of the oil must be olives grown in the region and if the label mentions an estate, 95 percent of the oil must originate from olives grown there. Wolk chairs an Agriculture subcommittee on olive oil production. California is one of seven states the produce olive oil. U.S.-origin oil accounts for 2 percent of U.S. olive oil consumption, according to the American Olive Oil Producers Association.