The Automatic Identification System (AIS) is a tracking system used for maritime navigation. It enables ships and vessels to automatically exchange information such as their position, speed, and course with other nearby ships and shore stations. This helps improve safety at sea by allowing vessels to be aware of each other's movements and avoid collisions. AIS operates using VHF radio frequencies and is mandatory for large commercial vessels, while smaller boats can also use it voluntarily. The system enhances situational awareness for mariners and supports maritime traffic management, contributing to more efficient and safer navigation in busy waterways.