216.253—Prohibitions.
Notwithstanding takings contemplated in § 216.250 and authorized by a Letter of Authorization issued under §§ 216.106 and 216.257, no person in connection with the activities described in § 216.250 shall:
(a)
Take any marine mammal not specified in § 216.250(b) ;
(b)
Take any marine mammal specified in § 216.250(b) other than by incidental, unintentional Level A or Level B harassment or mortality;
(c)
Take a marine mammal specified in § 216.250(b) if such taking results in more than a negligible impact on the species or stocks of such marine mammal; or
(d)
Violate, or fail to comply with, the terms, conditions, and requirements of these regulations or a Letter of Authorization issued under §§ 216.106 and 216.257.