PART 424 — LISTING ENDANGERED AND THREATENED SPECIES AND DESIGNATINGCRITICAL HABITAT [ 50 CFR 424 ]PART424 — LISTING ENDANGERED AND THREATENED SPECIES ANDDESIGNATING CRITICAL HABITAT [ 50 CFR 424 ]Table of ContentsSubpart A — General Provisions§ 424.01 — Scope and purpose.§ 424.02 — Definitions.Subpart B — Revision of the Lists§ 424.10 — General.§ 424.11 — Factors for listing, delisting,or reclassifying species.§ 424.12 — Criteria for designating criticalhabitat.[ Last FR update:05/01/2012 ]§ 424.13 — Sources of information andrelevant data.§ 424.14 — Petitions.§ 424.15 — Notices of review.§ 424.16 — Proposed rules.[ Last FR update: 05/01/2012 ]§ 424.17 — Time limits and required actions.§ 424.18 — Final rules—general.[Last FR update: 05/01/2012 ]§ 424.19 — Final rules—impact analysis of critical habitat.§ 424.20 — Emergency rules.§ 424.21 — Periodic review.Authority: Pub. L. 93–205,87 Stat. 884; Pub. L. 95–632, 92...