A masthead light, side lights and a stern light are the lights that power driven vessels less than 65.6 feet long and underway between sunset and sunrise exhibit.
Power-driven vessels less than 65.6 feet long must exhibit a white masthead light and a white stern light between sunset and sunrise when underway. Additionally, they should also display red and green sidelights when the visibility is restricted.
Power-driven vessels less than 65.6 feet long must exhibit a green light on the starboard side and a red light on the port side, in addition to an all-around white light, when underway between sunset and sunrise. These lights help other vessels determine the direction the vessel is moving and avoid collisions at night.
Port and starboard steaming lights and stern light
Rules of the RoadInternational/InlandLights & shapesRule 23-Power-driven vessels underway(a) A power-driven vessel underway shall exhibit:(i) a Masthead light forward;(ii) a second masthead light abaft of and higher than the forward one; except that a vessel of less than 50 meters in length shall not be obliged to exhibit such a light but may do so;(iii) sidelights; and(iv) a stern light*note on side lights. Red is port side (left) and green is starboard side (right)
Rules of the RoadInternational/InlandLights & shapesRule 23-Power-driven vessels underway(a) A power-driven vessel underway shall exhibit:(i) a Masthead light forward;(ii) a second masthead light abaft of and higher than the forward one; except that a vessel of less than 50 meters in length shall not be obliged to exhibit such a light but may do so;(iii) sidelights; and(iv) a stern light*note on side lights. Red is port side (left) and green is starboard side (right)
Vessels must have proper navigation lights on board when operating between sunset and sunrise to ensure visibility and avoid collisions with other vessels. These lights include red, green, and white lights that signal the vessel's position, direction of travel, and status. It is important for vessels to adhere to these regulations to promote safe navigation at night.
The should comply with IRPCS and be on between sunset and sunrise and in restricted visibility
Vessels under oars or paddles should exhibit the same navigation lights as sailing vessels if practical. However, un-powered vessels less than 23 feet are only required to have on-hand, one lantern or flashlight shining a white light that must be used between sunset and sunrise in all weather and during restricted visibility.
Vessels operating away from the dock between sunset and sunrise must have navigation lights, sound-producing devices (such as a whistle or horn), and radar or radio equipment for communication and navigation. These devices help ensure the safety of the vessel and others in low-visibility conditions.
All around yellow light must be displayed when a boat is moored or anchored outside a designated mooring area between sunset and sunrise.
USCG Navigation Rules International (i) /Inland (h) General Rules 3-Continued The word "Underway" means that a vessel is not at anchor, or made fast to the shore, or aground; There is a link provided below with more info on underway vessels.
This white-colored light that must be visible from all angles is called an anchor light. It is usually situated atop the mast.