Monthly Archives: February 2018



A handy guide to the SOLAS requirements for the carriage of LRIT

Dubai and ship

Another post, and another piece of equipment required by SOLAS V

What does LRIT stand for?

Long-Range Identification and Tracking

It a system that enables the global identification and tracking of ships using existing  GMDSS equipment on board (INMARSAT-C)

What SOLAS Regulation Requires LRIT to be carried?

Regulation 19-1

This regulation establishes provisions to enable Contracting Governments to undertake the long-range identification and tracking of ships.

 What ships are required to carry LRIT?


Click on the picture to see this diagram on the IMO website

The following ships engaged on international voyages:

  • Passenger ships, including high-speed passenger craft;
  • Cargo ships, including high-speed craft, of 300 gross tonnage and upwards; and
  • Mobile offshore drilling units.

Ships, operated exclusively within sea area A1 shall not be required to carry LRIT

 What information must be automatically transmitted?

Ships shall automatically transmit the following long-range identification and tracking information:

  •  The identity of the ship
  • The position of the ship (latitude and longitude)
  • The date and time of the position provided

A ship’s LRIT equipment must transmit position reports at 6-hour intervals unless a more frequent interval is requested remotely by an LRIT Data Centre

When can the equipment be switched off?

In exceptional circumstances and for the shortest duration possible where the operation Bridge widow with a gold screenis considered by the master to compromise the safety or security of the ship. In such a case, the master shall inform the Administration without undue delay and make an entry in the record of navigational activities and setting out the reasons for the decision and indicating the period during which the system or equipment was switched off.

Who can receive the information?

An Administration shall be entitled to receive such information about ships entitled to fly its flag irrespective of where such ships may be located.

A Contracting Government shall be entitled to receive such information about ships which have indicated their intention to enter a port facility, or a place under the jurisdiction of that Contracting Government, irrespective of where such ships may be located provided they are not located within the waters landward of the baselines of another Contracting Government.

A  Contracting Government shall be entitled to receive such information about ships entitled to fly the flag of other Contracting Governments, not intending to enter a port facility or a place under the jurisdiction of that Contracting Government, navigating within a distance not exceeding 1,000 nautical miles of its coast provided such ships are not located within the waters landward of the baselines, established in accordance with international law, of another Contracting Government.

 Can ship’s be charged for receipt of LRIT information?

Contracting Governments shall not impose any charges on ships in relation to the long-range identification and tracking information they may seek to receive.

What certification is required for LRIT?

A LRIT Conformance report.

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The maintenance of navigation equipment

Navsregs>SOLAS>SOLAS V>Maintenance of Navigational Equipment

Radars , radios and lights on ship's gantry mastSOLAS V Regulation 16-Maintenance of equipment.

On the Navregs  blog writing the front the exploration of SOLAS V continues . This time the focus is on maintenance.

What is the requirements for the maintenance of navigational equipment?

That adequate arrangements are in place to ensure that the performance of the equipment required by SOLAS Chapter V is maintained.

Note This will include ensuring that proper manuals enabling on-board maintenance are available and that that companies have ensured a comprehensive back-up service, including provision of both spares and maintenance engineers by manufacturers or their agents.

Can a vessel sail with defective navigational equipment?

Yes, where repair facilities are not readily available, provided suitable arrangements are made by the master to take the inoperative equipment or unavailable information into account in planning and executing a safe voyage to a port where repairs can take place. In such cases the vessel must obtain approval from their flag state. Approval to sail will not apply to cases when the defects are detected during a safety survey.

The decision to allow a vessel to sale with defective equipment  will depend on the equipment involved, the magnitude of the malfunction and it’s effect on the ship being able to complete the voyage safely.

Equipment manuals and IEC

IEC 60945, issued by the IEC states that equipment manuals must be:

  • Be written in English
  • Identify the category of the equipment or units to which they refer
  • in the case of equipment so designed that fault diagnosis and repair down to component level are practicable, provide full circuit diagrams, component layouts and a component parts list
  • In the case of equipment containing complex modules in which fault diagnosis and repair down to component level are not practicable, contain sufficient information to enable a defective complex module to be located, identified and replaced.

IEC is the international Electrotechnical Commission.

ISM and maintenance

ISM paragraph 5.10 contains the codes requirements for maintenance.

“5.10 Maintenance of the Ship and Equipment

5.10.1 The Company should establish procedures to ensure that the ship is maintained in conformity with the provisions of the relevant rules and regulations and with any additional requirements which may be established by the Company.

5.10.2 In meeting these requirements the Company should ensure that:
.1 inspections are held at appropriate intervals;
.2 any non-conformity is reported, with its possible cause, if known;
.3 appropriate corrective action is taken; and
.4 records of these activities are maintained”

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