50 CFR § 217.203 - Prohibitions.
---
identifier: "/us/cfr/t50/s217.203"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "50 CFR § 217.203 - Prohibitions."
title_number: 50
title_name: "Wildlife and Fisheries"
section_number: "217.203"
section_name: "Prohibitions."
chapter_name: "NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE"
subchapter_number: "C"
subchapter_name: "MARINE MAMMALS"
part_number: "217"
part_name: "REGULATIONS GOVERNING THE TAKE OF MARINE MAMMALS INCIDENTAL TO SPECIFIED ACTIVITIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "16 U.S.C. 1361 unless otherwise noted."
regulatory_source: "74 FR 35143, July 20, 2009, unless otherwise noted."
cfr_part: "217"
---
# 217.203 Prohibitions.
Notwithstanding takings contemplated in § 217.202(b) and authorized by a Letter of Authorization issued under § 216.106 of this chapter and § 217.207, no person in connection with the activities described in § 217.200 may:
(a) Take any marine mammal not specified in § 217.202(b);
(b) Take any marine mammal specified in § 217.202(b) other than by incidental, unintentional Level B harassment;
(c) Take a marine mammal specified in § 217.202(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 § 216.106 of this chapter and § 217.207.