---
kind: "unit"
title: "33"
title_heading: "Navigation and Navigable Waters"
key: "chI/subchE/part86"
level: "part"
label: "Part 86"
heading: "Annex Iii: Technical Details of Sound Signal Appliances"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/33/chI-subchE-part86"
sections_count: 3
---

# Part 86 — Annex Iii: Technical Details of Sound Signal Appliances

Title 33 C.F.R. — Navigation and Navigable Waters › Chapter I — Coast Guard, Department of Homeland Security › Subchapter E — Inland Navigation Rules

## Sections

- [§86.01. Whistles.](/cfr/33/86.01.md)
- [§86.02. Bell or gong.](/cfr/33/86.02.md)
- [§86.03. Approval. [Reserved]](/cfr/33/86.03.md)