N.Y.C. Admin. Code § 17-705: § 17-705 Age restriction on handling.

It shall be unlawful for a retail dealer to permit an employee or other agent of the retail dealer to sell, dispense or otherwise handle cigarettes or a tobacco product unless such employee or other agent is (1) at least eighteen years of age; or (2) under the direct supervision of the retail dealer or an employee or other agent of the retail dealer who is at least eighteen years of age, and who is present on the premises.