Section 218.10 - Specified activity and geographical region(a) Regulations in this subpart apply only to the U.S. Navy (Navy) for the taking of marine mammals that occur in the area described in paragraph (b) of this section and that occur incidental to the activities listed in paragraph (c) of this section.(b) The taking of marine mammals by the Navy under this subpart may be authorized in a Letter of Authorization (LOA) only if it occurs within the PMSR Training and Testing Study Area. The PMSR Study Area is located adjacent to Los Angeles, Ventura, Santa Barbara, and San Luis Obispo Counties along the Pacific Coast of Southern California and includes a 36,000-square-mile sea range. The two primary components of the PMSR Complex are Special Use Airspace and the ocean Operating Areas.(c) The taking of marine mammals by the Navy is only authorized if it occurs incidental to the Navy conducting training and testing activities, including: (1)Training.(ii) Electronic warfare; and(2)Testing.(ii) Electronic warfare; and 87 FR 40960 , 7/7/2022 through 7/7/2029