U.S. Coast Guard - Navigation Rules and Regulations Handbook: International—Inland: Full Color 2021 Edition

2014 edition with complete updates as published by the United States Coast Guard 2020.
Skyhorse Publishing edition 2021.

All rights to any and all materials in copyright owned by the publisher are strictly reserved by the publisher. All inquiries should be addressed to Skyhorse Publishing, 307 West 36th Street, 11th Floor, New York, NY 10018.

Skyhorse Publishing books may be purchased in bulk at special discounts for sales promotion, corporate gifts, fund-raising, or educational purposes. Special editions can also be created to specifications. For details, contact the Special Sales Department, Skyhorse Publishing, 307 West 36th Street, 11th Floor, New York, NY 10018 or .

Skyhorse and Skyhorse Publishing are registered trademarks of Skyhorse Publishing, Inc., a Delaware corporation.

Visit our website at www.skyhorsepublishing.com.

10 9 8 7 6 5 4 3 2 1

Library of Congress Cataloging-in-Publication Data is available on file.

Cover design by Kai Texel

Print ISBN: 978-1-5107-6454-5

eBook ISBN: 978-1-5107-6457-6

Printed in China

CONTENTS

Footnotes proceeded by the double-dagger () symbol indicates clarifications added by the U.S. Coast Guard Office of Navigation Systems; and, are not found in the original source material.

INTRODUCTION

International Rules

The International Rules in this book were formalized in the Convention on the International Regulations for Preventing Collisions at Sea, 1972, and became effective on July 15, 1977. The Rules (commonly called 72 COLREGS) are part of the Convention, and vessels flying the flags of states ratifying the treaty are bound to the Rules. The United States has ratified this treaty and all United States flag vessels must adhere to these Rules where applicable. President Gerald R. Ford proclaimed 72 COLREGS and the Congress adopted them as the International Navigational Rules Act of 1977.

The 72 COLREGS were developed by the Inter-Governmental Maritime Consultative Organization (IMCO) which in May 1982 was renamed the International Maritime Organization (IMO). In November 1981, IMOs Assembly adopted 55 amendments to the 72 COLREGS which became effective on June 16, 1983. The IMO also adopted 9 more amendments which became effective on June 29, 1989. A single amendment became effective March 19, 1991. In 1993 8 amendments were adopted by the IMO which entered into force in 1995. The IMO adopted 9 amendments which entered into force November 29, 2003. Lastly, a single amendment was adopted which updated the Distress signals and entered into force on December 1, 2009. The International Rules in this book contain these amendments.

These Rules are applicable on waters outside of established navigational lines of demarcation. The lines are called COLREGS Demarcation Lines and delineate those waters upon which mariners shall comply with the Inland and International Rules. COLREGS Demarcation Lines are contained in this book.

Inland Regulations

The Inland Rules in this book replace the old Inland Rules, Western Rivers Rules, Great Lakes Rules, their respective pilot rules and interpretive rules, and parts of the Motorboat Act of 1940. Many of the old navigation rules were originally enacted in the 1800s. Occasionally, provisions were added to cope with the increasing complexities of water transportation. Eventually, the navigation rules for United States inland waterways became such a confusing patchwork of requirements that in the 1960s several attempts were made to revise and simplify them. These attempts were not successful.

Following the signing of the Convention on the International Regulations for Preventing Collisions at Sea, 1972, a new effort was made to unify and update the various inland navigation rules. This effort culminated in the enactment of the Inland Navigational Rules Act of 1980. This legislation sets out to the Inland Rules, the International and Inland Rules and Annexes are very similar in both content and format.

The effective date for the Inland Navigation Rules was December 24, 1981, except for the Great Lakes where the effective date was March 1, 1983.

On May 17, 2010 the US Coast Guard published a Final Rule which placed the Inland Navigational Rules into the Code of Federal Regulations. This move was in accordance with the Coast Guard and Maritime Transportation Act of 2004, which repealed the Inland Navigation Rules as they appeared in United States Code.

This Handbook supersedes Commandant Instruction M16672.2D, Navigation Rules: InternationalInland. It maintains the same format and provides additional and updated content. Not all U.S. Navigation Regulations found in Title 33 of the Code of Federal Regulations are contained in this handbook.

LEGAL CITATIONS

CONVERSION TABLE

Conversion of Metric to U.S. Customary/Imperial Units

NAVIGATION RULES

INTERNATIONALINLAND

INTERNATIONAL

General

PART AGENERAL

Rule 1
Application

(a) These Rules shall apply to all vessels upon the high seas and in all waters connected therewith navigable by seagoing vessels.

(b) Nothing in these Rules shall interfere with the operation of special rules made by an appropriate authority for roadsteads, harbors, rivers, lakes or inland waterways connected with the high seas and navigable by seagoing vessels. Such special rules shall conform as closely as possible to these Rules.

(c) Nothing in these Rules shall interfere with the operation of any special rules made by the Government of any State with respect to additional station or signal lights, shapes or whistle signals for ships of war and vessels proceeding under convoy, or with respect to additional station or signal lights or shapes for fishing vessels engaged in fishing as a fleet. These additional station or signal lights, shapes or whistle signals shall, so far as possible, be such that they cannot be mistaken for any light, shape or signal authorized elsewhere under these Rules .

(d) Traffic separation schemes may be adopted by the Organization for the purpose of these Rules.

(e) Whenever the Government concerned shall have determined that a vessel of special construction or purpose cannot comply fully with the provisions of any of these Rules with respect to the number, position, range or arc of visibility of lights or shapes, as well as to the disposition and characteristics of sound-signaling appliances, such vessel shall comply with such other provisions in regard to the number, position, range or arc of visibility of lights or shapes, as well as to the disposition and characteristics of sound-signaling appliances, as her Government shall have determined to be the closest possible compliance with these Rules in respect to that vessel.