Haw. Rev. Stat. § 712-1257: Prohibited cigarette sales of less than twenty.

(1) It shall be unlawful to sell single cigarettes or packs of cigarettes containing less than twenty cigarettes. It further shall be unlawful to sell cigarettes other than in sealed packages originating with the manufacturer and bearing the health warning required by law.

(2) As used in this section, "to sell" includes: to solicit and receive an order for; to have, or keep, or offer, or expose for sale; to deliver for value or in any other way than purely gratuitously; to peddle; to keep with intent to sell; and to traffic in.

(3) "Sale" includes every act of selling as defined in [subsection (2)].

(4) Any person who violates subsection (1), shall be fined not more than $2,500 for the first offense. Any subsequent offense shall subject the person to a fine of not less than $100 and not more than $5,000. Any person who knowingly violates subsection (1) shall be guilty of a class C felony.