Section 217.346 - [Effective 1/1/2025] [Effective until 12/31/2029] Letter of Authorization(a) To incidentally take marine mammals pursuant to this subpart, LOA Holder must apply for and obtain an LOA;(b) The LOA, unless suspended or revoked, may be effective for a period of time not to exceed December 31, 2029, the expiration date of this subpart;(c) In the event of projected changes to the activity or to mitigation and monitoring measures required by the LOA, LOA Holder must apply for and obtain a modification of the LOA as described in § 217.347;(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; and(f) Notice of issuance or denial of the LOA must be published in the Federal Register within 30 days of a determination. 89 FR 84715 , 1/1/2025 through 12/31/2029