50 CFR § 18.126
Authorized take allowed under a Letter of Authorization (LOA)
July 17, 2020
(a) An LOA allows for the nonlethal, non-injurious, incidental, but not intentional take by Level B harassment, as defined in §18.3 and under section 3 of the Marine Mammal Protection Act (16 U.S.C. 1371 et seq.), of Pacific walruses and/or polar bears while conducting oil and gas industry exploration, development, production, and/or other substantially similar activities within the Beaufort Sea ITR region described in §18.122.
(b) Each LOA will identify terms and conditions for each activity and location.