Hawaii Revised Statutes Division 1. Government § 269E-3

(1) Establish and administer a one call center that provides advance warning to excavators in this State of the location of subsurface installations in the area of an excavation for the purpose of protecting those installations from damage;

(2) Adopt, amend, or repeal rules pursuant to chapter 91 as it may deem necessary to effectuate this chapter. The rules adopted shall have the force and effect of law and may include but are not limited to rules that:

(3) Enforce this chapter and any rules adopted pursuant thereto;

(4) Issue binding interpretations or declaratory rulings, and conduct contested case proceedings pursuant to chapter 91; and

(5) Subpoena witnesses and documents, administer oaths, and receive affidavits and oral testimony, including telephonic and electronic communications.