Ban on vapor product sales to persons under 21.

Prohibits a person less than 21 years of age (underage person) from: (1) purchasing or receiving a nicotine-free electronic cigarette; or (2) purchasing or receiving an e-liquid vaporizer (vapor product). Restricts: (1) the sales and distribution of vapor products to underage persons; (2) the location of vending machines containing e-liquids, nicotine-free electronic cigarettes, or vaporizers where underage persons are present; and (3) use of self-service displays to sell e-liquids, nicotine-free electronic cigarettes, or vaporizers. Includes vaporizer and nicotine free electronic cigarette sales in the gross retail sales amount that determines whether an underage person can enter the retail establishment.