Section 217.166 - Letters of Authorization(a) To incidentally take marine mammals pursuant to these regulations, Hilcorp must apply for and obtain (LOAs) in accordance with § 216.106 of this chapter for conducting the activity identified in § 217.160(c) .(b) LOAs, unless suspended or revoked, may be effective for a period of time not to extend beyond the expiration date of these regulations.(c) An LOA application must be submitted to the Director, Office of Protected Resources, NMFS, by March 1st of the year preceding the desired start date.(d) An LOA application must include the following information:(1) \The date(s), duration, and the area(s) where the activity will occur;(2) The species and/or stock(s) of marine mammals likely to be found within each area;(3) The estimated number of takes for each marine mammal stock potentially affected in each area for the period of effectiveness of the Letter of Authorization.(4) An updated Stakeholder Engagement Plan detailing Hilcorp's meetings with stakeholders and any concerns raised that relate to marine mammals or subsistence activities.(e) In the event of projected changes to the activity or to mitigation, monitoring, reporting (excluding changes made pursuant to the adaptive management provision of § 217.97(c)(1) ) required by an LOA, Hilcorp must apply for and obtain a modification of LOAs as described in § 217.167 .(f) Each 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, their habitat, and the availability of the species for subsistence uses; and(3) Requirements for monitoring and reporting.(g) Issuance of the LOA(s) must be based on a determination that the level of taking must be consistent with the findings made for the total taking allowable under these regulations.(h) If NMFS determines that the level of taking is resulting or may result in more than a negligible impact on the species or stocks of such marine mammal, the LOA may be modified or suspended after notice and a public comment period.(i) Notice of issuance or denial of the LOA(s) must be published in the FEDERAL REGISTER within 30 days of a determination.