What forms can visual distress signals take under COLREGs?

Visual distress signals under the COLREGs are intended to attract attention and indicate that a vessel is in distress and requires assistance. Emergency flares, smoke signals, and flags are all recognized methods to communicate visually.

Emergency flares provide a bright, highly visible signal that can be seen from a significant distance, especially at night. Smoke signals are useful during the day, producing bright-colored smoke that can be spotted from far away. Flags can be displayed in various distress configurations, such as the international code flag "November" over "Charlie," which communicates a vessel's urgent need for help.

While reflectors and navigational lights, sound signals, and electronic beacons serve important roles in maritime safety and communication, they do not specifically categorize as visual distress signals related to COLREGs. Vests and life rafts are critical for ensuring safety during emergencies but are not considered distress signals in the context of COLREG regulations.