State of Hawaii Billboard Statutes:
445-112 Where and when permitted.
445-113 Regulation by counties.
264-72 Control of outdoor advertising. No person shall erect or maintain any outdoor advertising outside of the right-of-way boundary and visible from the main-traveled way of any federal-aid or state highway within the State, except the following:
(1) Directional and other official signs and notices, which signs and notices shall include, but not be limited to,signs and notices pertaining to natural wonders, scenic and historic attractions as authorized or required by law.
(2) Signs, displays, and devices advertising the sale or lease of the property upon which they are located.
(3) Signs, displays, and devices advertising activities conducted on the property upon which they are located.
(4) Signs lawfully in existence on October 22, 1965, determined by the director to be landmark signs, including signs on farm structures or natural surfaces, of historic or artistic significance the preservation of which would be consistent with the purpose of this section.
§264-73 Regulations. The director of transportation may promulgate rules and regulations governing the erection and maintenance of outdoor advertising permitted under section 264-72, consistent with the safety and welfare of the traveling public and with the national standards promulgated by the Secretary of Transportation pursuant to Title 23, United States Code.