Section 217.266 - [Effective until 10/12/2028] Letter of Authorization(a) To incidentally take marine mammals pursuant to this subpart, LOA Holder must apply for and obtain an LOA.(b) An LOA, unless suspended or revoked, may be effective for a period of time not to exceed October 12, 2028, the expiration date of this subpart.(c) In the event of projected changes to the activity or to mitigation and monitoring measures required by an LOA, LOA Holder must apply for and obtain a modification of the LOA as described in § 217.267 .(d) The LOA must set forth: (1) Permissible methods of incidental taking;(2) Means of effecting the least practicable adverse impact (i.e., mitigation) on the species, its habitat, and on the availability of the species for subsistence uses; and(3) Requirements for monitoring and reporting.(e) Issuance of the LOA must be based on a determination that the level of taking must be consistent with the findings made for the total taking allowable under the regulations of this subpart.(f) Notice of issuance or denial of an LOA must be published in the FEDERAL REGISTER within 30 days of a determination. 88 FR 62977 , 10/13/2023through 10/12/2028