What is the Legal Age for Vaping in the UK and Worldwide? A majority of surveyed parents didn't know a person must be 21 to purchase tobacco products in the United States. The federal age limit for buying cigarettes, vapes, nicotine pouches and other How Old Do You Have to Be to Vape? Find Out Now NC among last states without age 21 tobacco sales law Legal Age For Buying Vapes You Must be 19 Years Older to Purchase Vape Cigs and E Liquid Sign signs by salagraphics A federal law changed the age requirement to buy tobacco products to 21, Wisconsin's state law still sits at 18.