Tennessee Code Title 39. Criminal Offenses § 39-17-1504

(a) It is unlawful for any person to sell or distribute any tobacco, smoking hemp, vapor product, or smokeless nicotine product to another person who has not attained twenty-one (21) years of age or to purchase a tobacco, smoking hemp, vapor product, or smokeless nicotine product on behalf of such person under twenty-one (21) years of age.

(b) It is unlawful for any person to persuade, entice, send or assist a person who has not attained twenty-one (21) years of age to purchase, acquire, receive or attempt to purchase, acquire or receive a tobacco, smoking hemp, vapor product, or smokeless nicotine product. This section and § 39-17-1505 do not preclude law enforcement efforts involving:

(c) No person shall distribute tobacco, smoking hemp, vapor product, or smokeless nicotine product samples in or on any public street, sidewalk, or park.

(d) A person engaged in the sale or distribution of tobacco, smoking hemp, vapor product, or smokeless nicotine product shall demand proof of age from a prospective purchaser or recipient if an ordinary person would conclude on the basis of appearance that the prospective purchaser or recipient may be under thirty (30) years of age. In the case of distribution by mail, the distributor of tobacco, smoking hemp, vapor product, or smokeless nicotine product shall obtain from the addressee an affirmative statement that the person is twenty-one (21) years of age or older, and shall inform the recipient that the person is strictly prohibited from distributing any tobacco, smoking hemp, vapor product, or smokeless nicotine product, as defined by this part, to any person under twenty-one (21) years of age.