A Practical Guide to the Inland Rules of Navigation

What Are the Inland Rules of Navigation?

The Inland Navigation Rules are often described as the “rules of the road” for boats. They govern how vessels should operate around one another and establish requirements involving safe speed, lookouts, passing, navigation lights, sound signals, and collision avoidance.

These rules apply to vessels operating on the inland waters of the United States, including many rivers, lakes, bays, and harbors. Beyond the seaward boundary lines, the applicable rules are the International Collision Regulations, so operators should understand which set of rules governs the waters they are using.

The rules apply to more than large commercial ships. Motorboats, sailboats, fishing vessels, personal watercraft, and other watercraft may also have responsibilities under them.

Maintain a Proper Lookout

Every vessel must maintain a proper lookout using sight, hearing, and any other available means appropriate for the conditions. This means paying attention to nearby vessels, swimmers, navigation markers, weather, floating objects, and changes in traffic.

A lookout cannot be effective when the operator is distracted by a phone, passengers, alcohol, onboard entertainment, or other activities. Depending on the vessel and surrounding conditions, someone other than the person steering may need to help watch for hazards.

Failing to notice another boat does not excuse a collision. Operators are expected to remain alert enough to recognize danger while there is still time to respond.

Travel at a Safe Speed

There is no single speed that is safe in every situation. An appropriate speed depends on visibility, traffic, weather, current, water depth, the vessel’s maneuverability, and nearby hazards.

A speed that seems reasonable on an open lake during clear weather may be dangerous in a crowded harbor, narrow channel, heavy rain, or nighttime conditions. The vessel should be moving slowly enough that the operator can take effective action and stop within an appropriate distance if a hazard appears.

Posted speed and no-wake restrictions must also be followed. Even when no specific limit is posted, operators remain responsible for adjusting their speed to the conditions.

Assess When a Collision Risk Exists

Operators should use all available information to determine whether another vessel is getting dangerously close. When there is doubt about whether a collision risk exists, the Inland Rules instruct operators to treat the risk as real.

Any response should be clear, timely, and large enough for the other vessel to recognize. A series of small, uncertain course changes can make the situation more confusing. Slowing down, stopping, reversing, or making a noticeable course change may be necessary to create a safe passing distance.

Head-On, Crossing, and Overtaking Situations

Several of the most important Inland Rules address common situations in which vessels approach one another.

• Head-on: When two power-driven vessels are approaching directly or nearly directly, both generally turn toward starboard, or to their right, so they pass port side to port side.
• Crossing: When two power-driven vessels are crossing, the operator who sees the other vessel on the starboard side generally must keep out of the way. An easy way to remember this is that the vessel approaching from the right often requires your immediate attention.
• Overtaking: A vessel approaching another from behind must keep out of the way until it has completely passed and is clear. The responsibility remains with the overtaking vessel even if the vessels’ positions change during the maneuver.

Boaters sometimes refer to one vessel as having the “right of way,” but the Coast Guard explains that the rules generally impose responsibilities rather than grant an absolute right to proceed. Even a stand-on vessel may need to act when it becomes clear that the other operator is not taking appropriate steps to avoid a collision.

Use Extra Care in Narrow Channels

Vessels traveling through narrow channels generally should remain as close to the outer edge on their starboard side as is safe and practical. Smaller vessels, sailboats, and fishing vessels should avoid interfering with vessels that can safely navigate only within the channel.

Operators should also use particular caution around bends and other areas where an approaching vessel may be hidden. Passing, crossing, or anchoring in a narrow channel can create serious hazards when there is not enough room for other vessels to maneuver safely.

Navigation Lights and Sound Signals Matter

Proper lights help other operators identify a vessel’s direction, position, and activity. The Inland Rules include requirements for lights and shapes used by power-driven vessels, sailboats, anchored boats, towing vessels, fishing vessels, and vessels with limited maneuverability.

Required navigation lights generally must be displayed from sunset to sunrise and during restricted visibility. Sound signals may also be used to communicate passing intentions, warn vessels near hidden bends, or signal uncertainty about another operator’s actions.

Missing lights, incorrect signals, or a failure to respond to another vessel’s signal can contribute to confusion and increase the risk of a collision.

How Navigation Rule Violations Can Affect an Injury Claim

After a boating collision, investigators may examine whether each operator followed the Inland Navigation Rules. Evidence may include witness statements, vessel damage, GPS information, navigation lights, onboard electronics, photographs, videos, radio communications, and law enforcement reports.

A rule violation does not necessarily answer every question about fault. More than one vessel operator or company may have contributed to the accident. However, evidence that someone failed to maintain a lookout, traveled too quickly, ignored a passing rule, or failed to take reasonable action may help establish negligence.

Morgan & Morgan May Be Able to Help

Boating collisions can result in traumatic brain injuries, spinal cord damage, broken bones, drowning, and other life-changing harm. Determining why an accident happened may require a careful review of vessel operations, navigation decisions, and the rules that applied at the time.

Morgan & Morgan’s maritime accident attorneys can investigate the collision, preserve important evidence, identify potentially responsible parties, and fight for the compensation you may deserve.

Contact Morgan & Morgan for a free, no-obligation case evaluation. With The Fee Is Free™, you pay nothing unless we win your case.