New Study: Parent Knowledge of the U.S. Tobacco 21 Law Do you know the legal age to purchase tobacco in the U.S.? It turns out many parents don't. In a survey The FDA Regulations say the minimum age to sell tobacco and vaping products is 18, but it may be different for your store. We Card E cigarettes E Cigarettes Vaping Liquids Can Only Be Purchased by Age 18 + Plus Warning Notice Sign Retail Shop Adhesive Sticker Decal Sign Etsy Finland how old do you have to be to vape Definitive Guide