An employee or representative is considered to be on travel status only during the time when conducting official business away from the employee's or representative's regular place of business and while traveling to and from the place at which official business is transacted. Unless otherwise specified and approved by the comptroller, travel status begins with departure of common carriers from the island on which the traveler's regular place of business is located and terminates upon the traveler's return to that island.
Haw. Code R. § 3-10-5