---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchF/part61"
level: "part"
label: "Part 61"
heading: "Periodic Tests and Inspections"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchF-part61"
sections_count: 33
---

# Part 61 — Periodic Tests and Inspections

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

## Contents

- [Subpart 61.01 — General](/cfr/46/chI-subchF-part61-subpart61.01.md)
- [Subpart 61.03 — Incorporation of Standards](/cfr/46/chI-subchF-part61-subpart61.03.md)
- [Subpart 61.05 — Tests and Inspections of Boilers](/cfr/46/chI-subchF-part61-subpart61.05.md)
- [Subpart 61.10 — Tests and Inspections of Pressure Vessels](/cfr/46/chI-subchF-part61-subpart61.10.md)
- [Subpart 61.15 — Periodic Tests of Piping Systems](/cfr/46/chI-subchF-part61-subpart61.15.md)
- [Subpart 61.20 — Periodic Tests of Machinery and Equipment](/cfr/46/chI-subchF-part61-subpart61.20.md)
- [Subpart 61.30 — Tests and Inspections of Fired Thermal Fluid Heaters](/cfr/46/chI-subchF-part61-subpart61.30.md)
- [Subpart 61.35 — Design Verification and Periodic Testing for Automatic Auxiliary Boilers](/cfr/46/chI-subchF-part61-subpart61.35.md)
- [Subpart 61.40 — Design Verification and Periodic Testing of Vital System Automation](/cfr/46/chI-subchF-part61-subpart61.40.md)