Navigation Rules
The Navigation Rules, also known as the Rules of the Road or the Nav Rules, are broken down into International Rules and Inland Rules. The U.S. Coast Guard's Navigation Rules Online combine the International and Inland Navigation Rules so it's easy to compare the two sets of rules.
- The International Rules, commonly called 72 COLREGS, are applicable on waters outside of established navigation 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 Title 33 of the Code of Federal Regulations part 80 (33 CFR 80), the Navigation Rules manual, and on nautical charts.
- The Inland Navigation Rules and Annexes are very similar to the International Rules in both content and format, with the exception of Annex V to the Inland Rules.
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