(a) A Letter of Authorization, unless suspended or revoked, will be valid for a period of time not to exceed the periods of validity of this subpart, but may be renewed or modified sooner subject to the renewal conditions in § 216.278 and the modification conditions in § 216.279.
(b) Each Letter of Authorization will set forth:
(1) Permissible methods of incidental taking;
(2) Means of effecting the least practicable adverse impact on the species, its habitat, and on the availability of the species for subsistence uses (i.e., mitigation); and
(3) Requirements for mitigation, monitoring and reporting.
(c) Issuance and renewal of the Letter of Authorization will be based on a determination that the total number of marine mammals taken by the activity as a whole will have no more than a negligible impact on the affected species or stock of marine mammal(s).