Section 217.63 - [Effective until 4/9/2029] Prohibitions(a) Except for takings contemplated in § 217.62 and authorized by a LOA issued under § 216.106 of this chapter and §§ 217.66 and 217.67 , it shall be unlawful for any person to do any of the following in connection with the activities listed in § 217.60 : (1) Violate, or fail to comply with, the terms, conditions, and requirements of this subpart or a LOA issued under § 216.106 of this chapter and § 217.66 or § 217.67 ;(2) Take any marine mammal species or stock not specified in this subpart or such LOAs;(3) Take any marine mammal specified in this subpart or such LOAs in any manner other than as specified; or(4) Take a marine mammal specified in this subpart or such LOAs if NMFS determines after notice and comment that the taking allowed for one or more activities under 16 U.S.C. 1371(a)(5)(A) is having or may have more than a negligible impact on the species or stocks of such marine mammal. 89 FR 25182 , 4/10/2024through 4/9/2029