Haw. Rev. Stat. § 148-2
To carry out and effectuate the purpose of this part, the department of agriculture may, subject to chapter 91, establish, prescribe, modify, or alter rules and regulations, which shall have the force and effect of law to control the advertisement of fresh fruits, fresh vegetables, or coffee including requirement for specifying size, grade, geographic origin, or quality, in conjunction with price.
The department in establishing such rules and regulations shall consult with appropriate state and federal agencies and with any appropriate industry or trade organization. The rules and regulations for controlling advertising and requirements for specifying size, grade, geographic origin, or quality in conjunction with price shall be on the basis of what the department may deem best suited to the interest of the consumer, the producer, and the public.
HRS § 148-2