How Old Do You Have to Be to Buy Cigarettes in the US? Laws restrict U.S. shipping of vape products. Many companies do it anyway. The Washington Post You'll have to be 21 to buy cigarettes or vape products in Washington starting Jan. 1, 2020 KNKX Public Radio Can You Buy a Vape at 18? Crystal Vape & Crystal Bar & SKE Vape Official Station Illegal vapes are biggest threat on High Street, say Trading Standards Laws restrict U.S. shipping of vape products. Many companies do it anyway. The Washington Post