(a) Regulations in this subpart apply only to the National Park Service (NPS) and those persons it authorizes or funds to conduct activities on its behalf for the taking of marine mammals that occurs in the area outlined in paragraph (b) of this section and that occurs incidental to the NPS's research and monitoring activities listed in the Letters of Authorization (LOA).

(b) The taking of marine mammals by NPS may be authorized in an LOA only if it occurs at Glacier Bay National Park (GLBA NP) or in the NPS's Southwest Alaska Inventory and Monitoring Network (SWAN) sites.