50 CFR § 665.202 - Management subareas.
(a) The Hawaii fishery management area is divided into subareas with the following designations and boundaries:
(2) Northwestern Hawaiian Islands means the EEZ around the Hawaiian Archipelago lying to the west of 161°20′ W. long. For the purposes of regulations issued under this subpart, Midway Island is treated as part of the NWHI Subarea.
(b) The inner boundary of each management subarea is a line coterminous with the seaward boundaries of the State of Hawaii.
(c) The outer boundary of each management subarea is a line drawn in such a manner that each point on it is 200 nautical miles from the baseline from which the territorial sea is measured.