𝐂𝐎𝐋𝐑𝐄𝐆𝐬 𝐑𝐔𝐋𝐄 20: 𝐋𝐈𝐆𝐇𝐓𝐒 𝐀𝐍𝐃 𝐒𝐇𝐀𝐏𝐄𝐒 Rule 20 sets out the basic requirements for navigation lights and shapes used by vessels to indicate their status and situation. These lights and shapes must be displayed from sunset to sunrise and during periods of restricted visibility, when they may be necessary. The purpose is to help vessels identify each other, understand their situation, and take appropriate action to avoid collision. #fyppppppppppppppppppppppp #MarinoPH #fypシ゚viralシ #MaritimeEducation #Seafarers