Kentucky smoke shops must obtain new licenses as new law takes effect Only tobacco and menthol vapes are legal to buy in Kentucky. Can the flavored vapes be ordered online? Here's what to know and resources if you want to quit. KY lawmakers aim at shops that sell vapes, tobacco to kids Lexington Herald Leader A new Kentucky law requiring smoke shops to obtain updated retail licenses takes effect Jan. 1, marking a significant step in efforts to prevent youth vaping across the state. Details below.