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What is LRIT or Long Range Identification and Tracking System ?

Written by Amit Sharma

The Long Range Identification and Tracking (LRIT) system is a designated International Maritime Organization (IMO) system designed to collect and disseminate vessel position information received from IMO member States ships that are subject to the International Convention for the Safety of Life at Sea (SOLAS).

LRIT is a maritime domain awareness (MDA) initiative to enhance maritime Safety, Security and protect the marine environment. LRIT allows Member States to receive position reports from vessels operating under their flag, vessels seeking entry to a ort within their territory, or vessels operating in proximity to the State’s coastline.

LRIT is a collection and distribution system for basic information on vessels.
There are two aspects to LRIT:

  1. The ‘reporting’ aspect where vessels to which LRIT applies report their identity and position, with a date/time stamp, every six hours (four times per day).
  2. The ‘receiving’ aspect where coastal States can purchase reports when vessels are within 1,000 nautical miles, or where port States can purchase reports when vessels seek entry to a port at a pre-determined distance or time from that port (up to 96 hours pre-entry).

The LRIT system consists of the shipborne LRIT information transmitting equipment, the Communication Service Provider(s), the Application Service Provider(s), the LRIT Data Centre(s), including any related Vessel Monitoring System(s), the LRIT Data Distribution Plan and the International LRIT Data Exchange. Certain aspects of the performance of the LRIT system are reviewed or audited by the LRIT Coordinator acting on behalf of all SOLAS Contracting Governments.

 As per SOLAS Chapter V, Regulation 19-1, on Long Range Identification and Tracking (LRIT) refers to the requirement for specified Convention vessels to automatically transmit their identity, position and date/time of the position at 6-hourly intervals, with an ability to increase the rate to intervals of up to once every 15 minutes when requested.  In addition, the equipment must be able to respond to poll requests.

LRIT users include the following:

About the author

Amit Sharma

Graduated from M.E.R.I. Mumbai (Mumbai University), After a brief sailing founded this website with the idea to bring the maritime education online which must be free and available for all at all times and to find basic solutions that are of extreme importance to a seafarer by our innovative ideas.

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