---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchF/part63"
level: "part"
label: "Part 63"
heading: "Automatic Auxiliary Boilers"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchF-part63"
sections_count: 15
---

# Part 63 — Automatic Auxiliary Boilers

Title 46 C.F.R. — Shipping › Chapter I — Coast Guard, Department of Homeland Security › Subchapter F — Marine Engineering

## Contents

- [Subpart 63.01 — General Provisions](/cfr/46/chI-subchF-part63-subpart63.01.md)
- [Subpart 63.05 — Reference Specifications](/cfr/46/chI-subchF-part63-subpart63.05.md)
- [Subpart 63.10 — Miscellaneous Submittals](/cfr/46/chI-subchF-part63-subpart63.10.md)
- [Subpart 63.15 — General Requirements](/cfr/46/chI-subchF-part63-subpart63.15.md)
- [Subpart 63.20 — Additional Control System Requirements](/cfr/46/chI-subchF-part63-subpart63.20.md)
- [Subpart 63.25 — Requirements for Specific Types of Automatic Auxiliary Boilers](/cfr/46/chI-subchF-part63-subpart63.25.md)