50 CFR 424.10 : Wildlife And Fisheries (§ 1.1 To Parts 698-699) — (Subchapter A To Parts 561-599) — Joint Regulations (United States Fish And Wildlife Service, Department Of The Interior And National Marine Fisheries Service, National Oceanic And Atmospheric Administration, Department Of Commerce); Endangered Species Committee Regulations (Part 400 To Parts 454-499) — (Part 400 To § 424.21) — Listing Endangered And Threatened Species And Designating Critical Habitat (§ 424.01 To § 424.21) — Revision Of The Lists (§ 424.10 To § 424.21) — General.

4 Aug 2016

The Secretary may add a species to the lists or designate critical habitat, delete a species or critical habitat, change the listed status of a species, revise the boundary of an area designated as critical habitat, or adopt or modify special rules (see 50 CFR 17.40-17.48 and parts 222 and 227) applied to a threatened species only in accordance with the procedures of this part.

50 CFR 424.10