US Supreme Court Rejects Challenge to California Flavored Tobacco Ban Flavored tobacco banned in California as Prop. 31 passes Los Angeles Times Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using Vermont Public California's vaping flavor ban could prove lethal Orange County Register Local bans on flavored tobacco products in California are linked to lower youth vaping rates without increasing cigarette smoking, according to a new study published Friday. Details in bio.