Haw. Rev. Stat. § 128E-12: Enforcement.

If the commission determines that any person has violated or is violating this chapter, or any rule adopted pursuant to this chapter, the commission:

(1) Shall cause written notice to be served upon the alleged violator or violators. The notice shall specify the alleged violation and may contain an order specifying a reasonable time during which the facility shall submit the required reports, forms, and notifications;

(2) May require the alleged violator or violators to appear before the commission for a hearing at a time and place specified in the notice or to be set later, and to answer the charges complained of; and

(3) May impose penalties as provided in section 128E-11 by sending a written notice describing the violation, either by certified mail or personal service, to the alleged violator or violators.