Haw. Rev. Stat. § 134-9.4: [ §134-9.

[ §134-9.4] Unlawful conduct while carrying a firearm; penalty. (a) A person carrying a firearm shall not:

(1) Consume alcohol or intoxicating liquor;

(2) Consume a controlled substance;

(3) Be under the influence of alcohol or intoxicating liquor; or

(4) Be under the influence of a controlled substance.

(b) As used in this section:

"Alcohol" and "intoxicating liquor" shall have the same meaning as in section 281-1.

"Controlled substance" means a drug, substance, or immediate precursor in schedules I through III of part II of chapter 329.

(c) Any person who violates this section shall be guilty of a misdemeanor; provided that any person who violates this section by consuming or being under the influence of alcohol or an intoxicating liquor shall be guilty of a petty misdemeanor.