# Federal Register 2026-20477 — effective 2026-10-06 — Security Zone; Patapsco River, Baltimore, MD — Coast Guard

For Federal Register 2026-20477, effective date is 2026-10-06; agency is Coast Guard; published is 2026-10-06; cfr parts amended is 33 CFR 165; dates, as printed is This rule is effective from 1 p.m. until 7 p.m. on October 6, 2026, recorded from its source on 2026-10-07; source re-checked 2026-11-03.

- **FR document number:** 2026-20477 _(verified: appears in the quote below)_
- **Rule:** Security Zone; Patapsco River, Baltimore, MD _(verified: appears in the quote below)_
- **Agency:** Coast Guard _(verified: appears in the quote below)_
- **Effective date:** 2026-10-06 _(verified: appears in the quote below)_
- **DATES, as printed:** This rule is effective from 1 p.m. until 7 p.m. on October 6, 2026. _(verified: appears in the quote below)_
- **CFR parts amended:** 33 CFR 165 _(our reading, not quoted from the source)_
- **Published:** 2026-10-06 _(verified: appears in the quote below)_

## What the source says

> {"document_number":"2026-20477","title":"Security Zone; Patapsco River, Baltimore, MD","agency_names":["Homeland Security Department","Coast Guard"],"effective_on":"2026-10-06","dates":"This rule is effective from 1 p.m. until 7 p.m. on October 6, 2026.","cfr_references":[{"chapter":null,"citation_url":null,"part":"165","title":33}],"publication_date":"2026-10-06","html_url":"https://www.federalregister.gov/documents/2026/10/06/2026-20477/security-zone-patapsco-river-baltimore-md"}

## 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/).