What is the minimum distance away from the fore and aft centerline for lights indicating a vessel not under command or restricted in its ability to maneuver?

For a vessel that is not under command or is restricted in its ability to maneuver, the International Regulations for Preventing Collisions at Sea (COLREGs) specify the positioning of lights to ensure visibility and identification by other vessels. According to the regulations, the minimum distance for these lights—specifically the red and white lights that indicate the vessel's status—must be positioned at least 1 meter away from the vessel's fore and aft centerline. This positioning helps to avoid confusion regarding the vessel's condition while maximizing the visibility of the lights to approaching vessels from all angles.

In contrast, other options present distances greater than the requirement, which could unnecessarily complicate the lighting arrangement without adding any navigational benefit. The 1-meter standard is designed to maintain clarity in communication through visual signals while also complying with regulatory standards.