When Boat A approaches the port side of Boat B in darkness or reduced visibility, Boat A must take care to avoid collisions by following the navigation rules. According to maritime navigation regulations, Boat A should sound the appropriate signal to indicate its presence and intentions. Boat B, having the right of way on its port side, should maintain its course and speed unless it is clear that a collision is imminent. Both vessels should use their navigation lights and sound signals to enhance visibility and ensure safety.
Go around on either side is the action that is required of Boat A while overtaking Boat B in darkness or reduced visibility.
3 seconds of rapid bell ringing
give way to the starboard side
maintain course and speed
3 seconds of rapid bell ringing
Give-way to the starboard side
When Boat A approaches Boat B head-on in darkness or reduced visibility, both vessels are required to take action to avoid a collision. According to the International Regulations for Preventing Collisions at Sea (COLREGs), both boats should alter their course to starboard, allowing them to pass each other on the port side. Additionally, both vessels must maintain a proper lookout, ensure safe speed, and use appropriate navigation lights to indicate their presence.
Give-way to starboard side
In reduced visibility, a non-powered boat should display a white all-around light. This light helps other vessels identify the boat's presence and position in low visibility conditions, such as fog or at night. Additionally, the boat may also use reflective materials or flags to enhance visibility further. It's essential for safety and to comply with navigation rules.
When sailing a boat in reduced visibility you should turn on and use your lights. The light s should be in the correct position and set to the correct code. If you have radar, use this to make sure you are not on a collision course with a boat with out any lights. If you believe it is to risky to navigate, anchor up for the night making sure you have the correct lights and signals.
Reduced visibility on a boat is best defined by conditions such as fog, heavy rain, snow, or dense smoke, where the distance one can see is significantly impaired. Additionally, nighttime navigation without sufficient lighting can also be considered reduced visibility. These situations can hinder a navigator’s ability to see other vessels, navigational aids, and potential hazards, increasing the risk of accidents. It's essential for boaters to use appropriate navigational aids and proceed with caution in such conditions.
You should do the same in Oregon as you would anywhere else...display the appropriate navigational lights whenever the boat is operated between sunset and sunrise, or during periods of reduced visibility such as fog, rain or haze. Lights conforming to International Rules meet the requirements of Inland Rules. See the link below for more specific information on required navigational lights.