Trashed Cigarette Packs Highlight Failure of California's Flavor Ban What You Need To Know About California's Ban On Flavored Tobacco Sales LAist The ban on menthol cigarettes and other flavored tobacco products took effect Wednesday, Dec. 21. The new state wide law aims to reduce the rise in teen smoking. California voters passed Proposition 31 Supreme Court Declines to Hear California Flavor Ban Appeal Vaping360 Flavored tobacco banned in California as Prop. 31 passes Los Angeles Times