Notwithstanding takings contemplated in Sec. 217.50 and authorized by a Letter of Authorization issued under Sec. Sec. 216.106 and 217.57 of this chapter, no person in connection with the activities described in Sec. 217.50 may:
(a) Take any marine mammal not specified in Sec. 217.50(b);
(b) Take any marine mammal specified in Sec. 217.50(b) other than by incidental, unintentional harassment;
(c) Take a marine mammal specified in Sec. 217.50(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 this subpart or a Letter of Authorization issued under Sec. Sec. 216.106 and 217.57 of this chapter.