---
kind: "unit"
title: "46"
title_heading: "Shipping"
key: "chI/subchD/part39"
level: "part"
label: "Part 39"
heading: "Vapor Control Systems"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/46/chI-subchD-part39"
sections_count: 28
---

# Part 39 — Vapor Control Systems

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

## Contents

- [Subpart 39.1000 — General](/cfr/46/chI-subchD-part39-subpart39.1000.md)
- [Subpart 39.2000 — Equipment and Installation](/cfr/46/chI-subchD-part39-subpart39.2000.md)
- [Subpart 39.3000 — Vapor Collection Operations During Cargo Transfer](/cfr/46/chI-subchD-part39-subpart39.3000.md)
- [Subpart 39.4000 — Vessel-to-Vessel Transfers Using Vapor Balancing](/cfr/46/chI-subchD-part39-subpart39.4000.md)
- [Subpart 39.5000 — Multi-breasted Loading Using a Single Facility Vapor Connection](/cfr/46/chI-subchD-part39-subpart39.5000.md)
- [Subpart 39.6000 — Tank Barge Cleaning Operations with Vapor Collection](/cfr/46/chI-subchD-part39-subpart39.6000.md)