The Long-Range Identification & Tracking (LRIT) system allow for the global identification & tracking of the ships.

The function of the ships to transmit LRIT information & the rights & obligations of SOLAS Contracting Governments & of Search & rescue services to receive LRIT information are accepted in regulation V/19-1 of the 1974 SOLAS Convention.

The LRIT system consists of the ship borne LRIT information broad casting equipment, the Communication Service Provider, the Application Service Provider, the LRIT Data Centre, including any related Vessel Monitoring System, the LRIT Data Distribution Plan & the International LRIT Data Exchange. Certain features of the working of the LRIT system are reviewed by the LRIT Coordinator acting on behalf of all SOLAS Contracting Governments.

LRIT data is given to Contracting states to the 1974 SOLAS Convention & Search & rescue services authorized to receive the information, upon request, through a system of the National, Regional & Cooperative LRIT Data Centres utilizing the International LRIT Data Exchange.

Each authority should provide to the LRIT Data Centre it has selected, a record of the ships authorized to fly its flag, which are required to transmit LRIT information, including other salient details & should update, without delay, such records as & when changes occur. Ships should only transmit the LRIT information to the LRIT Data Centre selected by their Administration.