# Federal Register 2026-19391 — effective 2026-12-24 — Establishment of Class E Airspace; Ottawa, IL — Federal Aviation Administration For Federal Register 2026-19391, effective date is 2026-12-24; agency is Federal Aviation Administration; published is 2026-09-22; cfr parts amended is 14 CFR 71, recorded from its source on 2026-09-24; source re-checked 2026-11-03. - **FR document number:** 2026-19391 _(verified: appears in the quote below)_ - **Rule:** Establishment of Class E Airspace; Ottawa, IL _(verified: appears in the quote below)_ - **Agency:** Federal Aviation Administration _(verified: appears in the quote below)_ - **Effective date:** 2026-12-24 _(verified: appears in the quote below)_ - **DATES, as printed:** Effective 0901 UTC, December 24, 2026. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA Order JO 7400.11 and publication of conforming amendments. _(verified: appears in the quote below)_ - **CFR parts amended:** 14 CFR 71 _(our reading, not quoted from the source)_ - **Published:** 2026-09-22 _(verified: appears in the quote below)_ ## What the source says > {"document_number":"2026-19391","title":"Establishment of Class E Airspace; Ottawa, IL","agency_names":["Transportation Department","Federal Aviation Administration"],"effective_on":"2026-12-24","dates":"Effective 0901 UTC, December 24, 2026. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA Order JO 7400.11 and publication of conforming amendments.","cfr_references":[{"chapter":null,"citation_url":null,"part":"71","title":14}],"publication_date":"2026-09-22","html_url":"https://www.federalregister.gov/documents/2026/09/22/2026-19391/establishment-of-class-e-airspace-ottawa-il"} ## 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=2026-08-31&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: 2026-11-03. Review by: 2026-11-16. Part of [Federal rules taking effect: every US final rule in the Federal Register, by effective date](https://referencesource.org/federal-rules-taking-effect/).