Vaping rates in youth fall after California flavor ban, UCSD report finds Trashed Cigarette Packs Highlight Failure of California's Flavor Ban Is Vaping Banned In California? CASAA Explains the Flavor Ban 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. California May Ban Flavored Cannabis Vapes Greentank Flavored Vapes Still Available After Ban Tobacco Reporter