Haw. Rev. Stat. § 183D-8: Cooperation with other governmental authorities.

The department shall endeavor to secure the cooperation and assistance of and shall cooperate with the appropriate agency of the United States, or other governmental authorities having an interest in the subject matter of this chapter, in every way possible, for the promotion of the purposes of this chapter. More specifically the department may permit the appropriate agency of the United States to occupy any land or building and use any appliance, apparatus, or property held or controlled by the department, either independently or in conjunction with the department, upon such terms and conditions as the department and the agency may mutually agree.