Hawaii Revised Statutes Division 1. Government § 264-123

(a) A county may assess, impose, levy, collect, and transfer to the department impact fees for any development pursuant to ordinances adopted under section 46-142 and this part, and the department is authorized to receive those funds for state highway improvements.

(b) Prior to the assessment, imposition, levy, collection, or transfer to the department of impact fees pursuant to this section, the director shall approve a needs assessment study that shall identify the kinds of state highway improvements for which the fees shall be imposed by the county pursuant to part VIII of chapter 46.