; (ii) in the case of the Commonwealth of Puerto Rico, a line 3 marine leagues from the coastline of the Commonwealth of Puerto Rico; (iii) in the case of American Samoa, the United States Virgin Islands, and Guam, a line 3 geographic miles from the coastlines of American Samoa, the United States Virgin Islands, or Guam, respectively; (iv) in the case of the Commonwealth of the Northern Mariana Islands— (I) the coastline of the Commonwealth of the Northern Mariana Islands, until the Commonwealth of the Northern Mariana Islands is granted authority by the United States to regulate all fishing to a line seaward of its coastline; and (II) upon the United States grant of such authority, the line established by such grant of authority; or (v) for any possession of the United States not under clause (ii), (iii), or (iv), the coastline of such possession. (C) Construction Nothing in this definition may be construed to diminish the authority of the Department of Defense, the Department of the Interior, or any other Federal department or agency. (7) Healthy target stock The term healthy target stock means a component of a fishery targeted for harvest that is not overfished or experiencing overfishing and that is managed to achieve a target not to exceed a level consistent with maximum sustainable yield, taking into account any relevant economic, social, or ecological factor. (8) Lessee The term lessee means any party to a lease, right-of-use and easement, or right-of-way, or an approved assignment thereof, issued pursuant to the Outer Continental Shelf Lands Act ( 43 U.S.C. 1331 et seq.). (9) Offshore aquaculture The term offshore aquaculture means aquaculture conducted in the exclusive economic zone. (10) Offshore aquaculture facility The term offshore aquaculture facility means— (A) an installation or structure used, in whole or in part, for offshore aquaculture