Hawaii Revised Statutes Division 1. Government § 171-152

(a) In carrying out its functions under this part, the board may do all things necessary, useful, and convenient in connection with the restoration of beach lands, subject to all applicable laws, and may provide any necessary assistance to any county or nongovernmental organization in the restoration of beach lands so long as the public interest is served; provided that for beach restoration on privately-owned lands, the board shall be required to obtain authorization from affected property owners.

(b) The board or the board's designee, subject to this chapter and chapters 183C and 205A, shall maintain and manage beach lands restored pursuant to this part as well as a beach restoration plan described in section 171-153, subject to available funds.