# 2025-07531: Coast Guard Locks Down Straits for Daring Mackinac Bridge Swimmers' Parade

2025-07531, Safety Zone; Straits of Mackinac, Mackinaw City, MI, is a Federal Register proposed rule from Homeland Security Department, Coast Guard published 2025-05-01, effective 2025-07-26; PRIA reads it as touching household money (as of 2026-10-14).

- Canonical: https://policyrisk.com/federal-register/2025-07531
- As of: 2026-10-14
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2025-07531
- Title: Safety Zone; Straits of Mackinac, Mackinaw City, MI
- Type: Proposed Rule
- Agencies: Homeland Security Department; Coast Guard
- Citation: 90 FR 18633
- Published: 2025-05-01
- Effective: 2025-07-26
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 1625-AA00
- Last updated: 2026-10-14

## In one line

Coast Guard Locks Down Straits for Daring Mackinac Bridge Swimmers' Parade

## Summary

The Coast Guard wants to create a temporary safety zone around the Mackinac Bridge in Michigan for a big swim event on July 26, 2025. No boats or people can enter the 100-yard zone during the swim unless they get special permission. This keeps everyone safe and protects the environment, and you have until June 2, 2025, to share your thoughts on the plan.

## Abstract

The Coast Guard is proposing to establish a temporary safety zone for navigable waters within a 100-yard radius of the center span of the Mackinac Bridge, Straits of Mackinac, Mackinaw City, MI. The safety zone is needed to protect personnel, vessels, and the marine environment from a marine event involving swimmers under the bridge. This proposed rulemaking would prohibit persons and vessels from being in the safety zone unless authorized by the Captain of the Port Sector Northern Great Lakes or a designated representative. We invite your comments on this proposed rulemaking.

## Effects PRIA read

- Temporary 100-yard safety zone at Mackinac Bridge: benefit, low. You may not enter the navigable waters within a 100-yard radius of the center span of the Mackinac Bridge between St. Ignace and Mackinaw City from 7 a.m. to noon on July 26, 2025 unless you get permission from the Captain of the Port (COTP) or a designated representative. The safety zone covers th…
- Coast Guard finds no significant economic impact on small entities: benefit, low. The Coast Guard certifies under the Regulatory Flexibility Act that this proposed safety zone would not have a significant economic impact on a substantial number of small entities. While some vessel owners or operators may be small entities, the Coast Guard states vessel traffic can safely transit…

## Related documents

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- [2026-13137](https://policyrisk.com/federal-register/2026-13137): Marine Casualty Reporting on the Outer Continental Shelf, 2026-06-30
- [2026-08699](https://policyrisk.com/federal-register/2026-08699): Shipping Safety Fairways Along the Atlantic Coast, 2026-05-05
- [2026-20866](https://policyrisk.com/federal-register/2026-20866): Collection of Information Under Review by Office of Management and Budget; OMB Control Number: 1625-0095, 2026-10-13
- [2026-20902](https://policyrisk.com/federal-register/2026-20902): Safety Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship Canal, Chicago River, and Ca…, 2026-10-13
- [2026-20901](https://policyrisk.com/federal-register/2026-20901): Safety Zone; Brandon Road Lock and Dam to Lake Michigan Including Des Plaines River, Chicago Sanitary and Ship Canal, Chicago River, and Ca…, 2026-10-13

## Sources
- [2025-07531 on federalregister.gov](https://www.federalregister.gov/documents/2025/05/01/2025-07531/safety-zone-straits-of-mackinac-mackinaw-city-mi)
- [2025-07531 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-05-01/pdf/2025-07531.pdf)

## Related
- [Previous: 2025-07530, Safety Zones; Erie, PA; Detroit, MI; Duluth, MN](https://policyrisk.com/federal-register/2025-07530)
- [Next: 2025-07539, Request for Comment To Withhold Certain Aircraft Registration Information From…](https://policyrisk.com/federal-register/2025-07539)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2025-07531 (as of 2026-10-14).