Hawaii Revised Statutes Division 1. Government § 328J-11.5

(a) Sales of cigarettes, tobacco products, and electronic smoking devices are a statewide concern. It is the intent of the legislature to regulate the sale of cigarettes, tobacco products, and electronic smoking devices in a uniform and exclusive manner.

(b) All local ordinances or regulations that regulate the sale of cigarettes, tobacco products, and electronic smoking devices are preempted, and existing local laws and regulations conflicting with this chapter are null and void.

(c) Nothing in this chapter shall be construed to limit a county's authority under section 328J-15.