CFR›Title 50›Chapter II›Part 223›50 CFR Part 223 Subpart A Citation50 CFR Part 223 Subpart AContainsSections 223.101–223.102CorpusDaily eCFRDisplayed edition2026-10-13Last updated2026-10-13 Subpart A—General Provisions Sections 223.101 § 223.101 Purpose and scope. 223.102 § 223.102 Enumeration of threatened marine and anadromous species. Authority16 U.S.C. 1531 1543; subpart B, § 223.201-202 also issued under 16 U.S.C. 1361 et seq.; 16 U.S.C. 5503(d) for § 223.206(d)(9).Source43 FR 32809, July 28, 1978, unless otherwise noted. Redesignated at 64 FR 14068, Mar. 23, 1999. Next B Subpart B—Restrictions Applicable to Threatened Marine and Anadromous Species