# 2026-14550 — Federal rules taking effect: every published US final rule whose effective date is still in the future For 2026-14550, rule is Endangered and Threatened Wildlife and Plants; Reclassification of the Hawaiian Stilt (Kukuluae'o or Ae'o) From Endangered to Threatened With a Section 4(d) Rule; agency is Fish and Wildlife Service; effective date is 2026-08-19; dates, as printed is This rule is effective August 19, 2026; cfr parts amended is 50 CFR 17, recorded from its source on 2026-08-10. - **FR document number:** 2026-14550 _(verified: appears in the quote below)_ - **Rule:** Endangered and Threatened Wildlife and Plants; Reclassification of the Hawaiian Stilt (Kukuluae'o or Ae'o) From Endangered to Threatened With a Section 4(d) Rule _(verified: appears in the quote below)_ - **Agency:** Fish and Wildlife Service _(verified: appears in the quote below)_ - **Effective date:** 2026-08-19 _(verified: appears in the quote below)_ - **DATES, as printed:** This rule is effective August 19, 2026. _(verified: appears in the quote below)_ - **CFR parts amended:** 50 CFR 17 _(our reading, not quoted from the source)_ - **Published:** 2026-07-20 _(verified: appears in the quote below)_ ## What the source says > {"document_number":"2026-14550","title":"Endangered and Threatened Wildlife and Plants; Reclassification of the Hawaiian Stilt (Kukuluae'o or Ae'o) From Endangered to Threatened With a Section 4(d) Rule","agency_names":["Interior Department","Fish and Wildlife Service"],"effective_on":"2026-08-19","dates":"This rule is effective August 19, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"17","title":50}],"publication_date":"2026-07-20","html_url":"https://www.federalregister.gov/documents/2026/07/20/2026-14550/endangered-and-threatened-wildlife-and-plants-reclassification-of-the-hawaiian-stilt-kukuluaeo-or"} ## Source - https://www.federalregister.gov/api/v1/documents.json?per_page=1000&order=oldest&conditions%5Btype%5D%5B%5D=RULE&conditions%5Beffective_date%5D%5Bgte%5D=2026-08-11&conditions%5Beffective_date%5D%5Blte%5D=2026-12-31&fields%5B%5D=document_number&fields%5B%5D=title&fields%5B%5D=agency_names&fields%5B%5D=effective_on&fields%5B%5D=dates&fields%5B%5D=cfr_references&fields%5B%5D=publication_date&fields%5B%5D=html_url Last verified: 2026-08-10. Review by: 2026-08-24. Part of [Federal rules taking effect: every published US final rule whose effective date is still in the future](https://referencesource.org/federal-rules-taking-effect/).