Haw. Rev. Stat. § 327-4: Who may make an anatomical gift before donor's death.

Subject to section 327-8, an anatomical gift of a donor's body or body part may be made during the life of the donor for transplantation, therapy, research, or education in the manner provided in section 327-5 by:

(1) The donor, if the donor is at least eighteen years of age or is under eighteen years of age and is:

(A) An emancipated minor, as deemed pursuant to section 577-25; or

(B) Authorized under a state law to apply for a driver's license under part VI of chapter 286;

(2) An agent of the donor, unless the power of attorney for health care or other record prohibits the agent from making an anatomical gift;

(3) A parent of the donor, if the donor is under eighteen years of age and not emancipated; or

(4) The donor's guardian.