AT NIGHT!
30 minutes prior to sundown and thirty minutes after sunup
during periods of restricted visibility
The navigation lights required on a vessel are determined by its size, type, and the conditions under which it operates, as outlined in the International Regulations for Preventing Collisions at Sea (COLREGs). Vessels are classified into categories such as power-driven, sailing, and fishing vessels, each with specific light configurations. Additionally, the operational context, such as whether the vessel is at anchor or underway, also influences the required lighting. Compliance with these regulations ensures safety and visibility on the water.
keep a proper lookout.
Those include red lights on the port side and green lights on the other.Depends on the size of the vessel. My tiny little 14 ft boat is only required to show a white light. The link at the bottom of this page will take you to a chart showing lights and visible ranges for different sizes.What is the size of the vessel? Refer to "Navigation rules" for vessel specific answers.
The characteristics of navigation lights on a power driven vessel includes sidelights, sternlight, masthead light, and all-round white lights. Navigation lights must be displayed from sunset until sunrise as well as anytime visibility is restricted.
lights must be on during periods of restricted visibility
Any vessel over 7 meters is required to show Navigation lights between sunset to sunrise and in any times of restricted visibility. See Rule 20, Application. For a full list of Navigation Rules, see the link below.
The phrase "red-light returning" on a boat typically refers to a navigation indication that signals the vessel is returning to port or a safe harbor. It may also imply that the boat is approaching a channel or an area where caution is required, as indicated by red navigation lights. In maritime navigation, red lights generally signify that the vessel should be on the port side, guiding the way for safe passage.
A pleasure craft operator can moor their vessel to a signal only in cases of emergency or when it is necessary to avoid immediate danger. Otherwise, it is not recommended to moor a vessel to a signal as it may obstruct navigation or pose a safety hazard to other vessels.
Lights must be on during periods of restricted visibility. ref: EQ-2
When away from the dock after sunset.
When away from the dock after sunset.