---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "chIV"
level: "chapter"
label: "Chapter IV"
heading: "Great Lakes St. Lawrence Seaway Development Corporation, Department of Transportation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/33/chIV"
sections_count: 131
---

# Chapter IV — Great Lakes St. Lawrence Seaway Development Corporation, Department of Transportation

Title 33 C.F.R. — Navigation and Navigable Waters

## Contents

- [Part 400 — Part 400 [reserved]](/cfr/33/chIV-part400.md)
- [Part 401 — Seaway Regulations and Rules](/cfr/33/chIV-part401.md)
- [Part 402 — Tariff of Tolls](/cfr/33/chIV-part402.md)
- [Part 403 — Rules of Procedure of the Joint Tolls Review Board](/cfr/33/chIV-part403.md)
- [Part 404-499 — Parts 404-499 [reserved]](/cfr/33/chIV-part404-499.md)