---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "chI/subchN"
level: "subchap"
label: "Subchapter N"
heading: "Outer Continental Shelf Activities"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/33/chI-subchN"
sections_count: 180
---

# Subchapter N — Outer Continental Shelf Activities

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

## Contents

- [Part 140 — General](/cfr/33/chI-subchN-part140.md)
- [Part 141 — Personnel](/cfr/33/chI-subchN-part141.md)
- [Part 142 — Workplace Safety and Health](/cfr/33/chI-subchN-part142.md)
- [Part 143 — Design and Equipment](/cfr/33/chI-subchN-part143.md)
- [Part 144 — Lifesaving Appliances](/cfr/33/chI-subchN-part144.md)
- [Part 145 — Fire-Fighting Equipment](/cfr/33/chI-subchN-part145.md)
- [Part 146 — Operations](/cfr/33/chI-subchN-part146.md)
- [Part 147 — Safety Zones](/cfr/33/chI-subchN-part147.md)