Section 217.130 - Specified activity and geographical region(a) Regulations in this subpart apply only to taking of marine mammals by the U.S. Navy (Navy) and those persons it authorizes or funds to conduct activities that occur incidental to construction activities related to the multifunctional expansion and modification of Dry Dock 1 in the areas outlined in paragraph (b) of this section.(b) The taking of marine mammals by the Navy may be authorized in a Letter of Authorization (LOA) only if it occurs at Portsmouth Naval Shipyard, Kittery, Maine. 88 FR 19539 , 4/1/2023through 3/31/2028