---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "chI/subchP/part165"
level: "part"
label: "Part 165"
heading: "Regulated Navigation Areas and Limited Access Areas"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/33/chI-subchP-part165"
sections_count: 358
---

# Part 165 — Regulated Navigation Areas and Limited Access Areas

Title 33 C.F.R. — Navigation and Navigable Waters › Chapter I — Coast Guard, Department of Homeland Security › Subchapter P — Ports and Waterways Safety

## Contents

- [Subpart A — General](/cfr/33/chI-subchP-part165-subpartA.md)
- [Subpart B — Regulated Navigation Areas](/cfr/33/chI-subchP-part165-subpartB.md)
- [Subpart C — Safety Zones](/cfr/33/chI-subchP-part165-subpartC.md)
- [Subpart D — Security Zones](/cfr/33/chI-subchP-part165-subpartD.md)
- [Subpart E — Restricted Waterfront Areas](/cfr/33/chI-subchP-part165-subpartE.md)
- [Subpart F — Specific Regulated Navigation Areas and Limited Access Areas](/cfr/33/chI-subchP-part165-subpartF.md)
- [Subpart G — Protection of Naval Vessels](/cfr/33/chI-subchP-part165-subpartG.md)