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. How old do you have to be to vape? Kentucky shops, hemp association sue over new anti vaping law Fda Verification Portal Kentucky Vape Laws: What Every Vaper Must Know Kentucky Fruit Flavored Vapes Kentucky vape store owners say customers buying in bulk ahead of new law taking effect Jan. 1 Business wdrb.com