Emergency Position Indicating Radio Beacon (EPIRB) is a device to alert search and rescue services (SAR) in case of an emergency out at sea. It is a tracking equipment that transmits a signal on a specified band to locate a lifeboat, life raft, ship or people in distress. AN EPIRB is a SECONDARY means of DISTRESS alerting which is to say that it comes later in the hierarchy of alerting SAR authorities in case of a distress. It is mandatory to carry one EPIRB on every ship and two EPIRBS for all Indian Registered ships.