# Federal Register 2026-21851 — effective 2026-10-27 — Change of Address; Technical Amendment — National Mediation Board

For Federal Register 2026-21851, effective date is 2026-10-27; agency is National Mediation Board; published is 2026-10-27; cfr parts amended is 29 CFR 1203, 29 CFR 1208, 29 CFR 1209; dates, as printed is The final rule is effective October 27, 2026, recorded from its source on 2026-11-02; source re-checked 2026-11-03.

- **FR document number:** 2026-21851 _(verified: appears in the quote below)_
- **Rule:** Change of Address; Technical Amendment _(verified: appears in the quote below)_
- **Agency:** National Mediation Board _(verified: appears in the quote below)_
- **Effective date:** 2026-10-27 _(verified: appears in the quote below)_
- **DATES, as printed:** The final rule is effective October 27, 2026. _(verified: appears in the quote below)_
- **CFR parts amended:** 29 CFR 1203, 29 CFR 1208, 29 CFR 1209 _(our reading, not quoted from the source)_
- **Published:** 2026-10-27 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-21851","title":"Change of Address; Technical Amendment","agency_names":["National Mediation Board"],"effective_on":"2026-10-27","dates":"The final rule is effective October 27, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"1203","title":29},{"chapter":null,"citation_url":null,"part":"1208","title":29},{"chapter":null,"citation_url":null,"part":"1209","title":29}],"publication_date":"2026-10-27","html_url":"https://www.federalregister.gov/documents/2026/10/27/2026-21851/change-of-address-technical-amendment"}

## 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/).