---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchB"
level: "subchap"
label: "Subchapter B"
heading: "Merchant Marine Officers and Seamen"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchB"
sections_count: 357
---

# Subchapter B — Merchant Marine Officers and Seamen

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

## Contents

- [Part 10 — Merchant Mariner Credential](/cfr/46/chI-subchB-part10.md)
- [Part 11 — Requirements for Officer Endorsements](/cfr/46/chI-subchB-part11.md)
- [Part 12 — Requirements for Rating Endorsements](/cfr/46/chI-subchB-part12.md)
- [Part 13 — Certification of Tank Vessel Personnel](/cfr/46/chI-subchB-part13.md)
- [Part 14 — Shipment and Discharge of Merchant Mariners](/cfr/46/chI-subchB-part14.md)
- [Part 15 — Manning Requirements](/cfr/46/chI-subchB-part15.md)
- [Part 16 — Chemical Testing](/cfr/46/chI-subchB-part16.md)