---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchS/part173"
level: "part"
label: "Part 173"
heading: "Special Rules Pertaining to Vessel Use"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchS-part173"
sections_count: 26
---

# Part 173 — Special Rules Pertaining to Vessel Use

Title 46 C.F.R. — Shipping › Chapter I — Coast Guard, Department of Homeland Security › Subchapter S — Subdivision and Stability

## Contents

- [Subpart A — General](/cfr/46/chI-subchS-part173-subpartA.md)
- [Subpart B — Lifting](/cfr/46/chI-subchS-part173-subpartB.md)
- [Subpart C — School Ships](/cfr/46/chI-subchS-part173-subpartC.md)
- [Subpart D — Oceanographic Research](/cfr/46/chI-subchS-part173-subpartD.md)
- [Subpart E — Towing](/cfr/46/chI-subchS-part173-subpartE.md)