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Nautical Rules of the Road

To stay out of trouble, follow Inland Rules or else COLREGs. Know what to do when another boat does not follow the rules.


The USCG book, Navigation Rules – Inter­na­tion­al/Inland, explains nautical rules of the road and every boat over 39 ft long must have a copy onboard. Smaller boats ought to. There are two sets of rules: Inland Rules (formally the U.S. Inland Navigation Rules in 33 CFR 83), and Inter­na­tional Regulations for Preventing Collisions at Sea (COLREGS). The point where one set of rules supplants the other is the COLREGS demarcation line, marked on charts.

When two
boats meet

When two boats meet, one will have right of way and is the stand-on boat. Generally the stand-on boat must stay on course. The other boat must alter course and pass behind the stand-on boat. This is the give-way or burdened boat. Its course change should be large enough to be clearly noticeable. For sailboats, five basic rules will handle most situations.

When a boat
ignores
the rules

Sometimes it will seem that a burdened boat is ignoring the rules. During a race, it might be good to shout “starboard” or “leeward” to remind them that you have right of way. At other times, instead make a dramatic change of course that sends you well away from the other boat and in the direction opposite to which they ought to be steering. When the stand-on boat makes a course change, it should never be a small one that might go unnoticed.

Homeland
Security rules

The recent emphasis on homeland security has evoked new rules for sailors and a policy of quick, determined, and severe response to violators. Never approach any naval vessel, as doing so is a felony offence with a 6-figure fine. If you must pass close by one, contact them on channel 16 and follow their instructions while always maintaining forward speed.

Avoid, also, cruise line ships and commercial ships, especially those that might carry flammable products. Avoid commercial ports, especially fuel depots, and any security zone (e.g., near a dam, power plant, etc) marked on a chart. Do not anchor, nor even stop, beneath a bridge or in a commercial channel. If circumstances require you to break one of these rules, expect to be boarded by armed agents.

USCG documented
vs state titled

Ownership of a boat (ie, the title) can be established by documenting it with the USCG, where you have a name and hailing port on the transom and carry a certificate of docu­men­tation onboard, or by titling and registering it with a state or the District of Columbia, where you have a number on both sides of the hull forward. A documented boat must also be registered and stickered in some states, as proof that the taxes were paid, but not in others. The registration can be transferred without paying additional tax in some states but not others. A documented boat thus sometimes has a state registration but never has a state title and never bears a registration number.

Advantages of docu­men­tation versus titling include the one-time fee, after which annual updates are almost free. Also, docu­men­tation provides a permanent record of liens and owners that stays with the boat and can make it simpler to sell. Foreign countries do not recognize state registrations, whereas being USCG documented means that the boat is US flagged and entitled to certain legal rights and protections when in foreign waters, such as aid from the US Consulate. To be documented, a boat must exceed five tons displacement (with some exceptions) and be majority owned by a US citizen.

Lately a private company has been mailing out renewal notices for certificates of documentation. They look official, but are not. It is a service that you must pay for. Meanwhile, the USCG recently stopped mailing out renewal notices. Check the return address: If it is Falling Waters, VA, you are dealing with the USCG. If not, you probably aren’t.