Regulation - 11 Ship Reporting Systems*


  • Contracting Governments may refer ship reporting systems to IMO for adoption.
  • Ship reporting Systems to adhere to measures adopted by IMO
  • Ships to comply with requirements of adopted mandatory reporting systems.
Regulation 11
1. Ship reporting systems contribute to safety of life at sea, safety and efficiency of navigation and/or protection of the marine environment. A ship reporting system, when adopted and implemented in accordance with the guidelines and criteria developed by the Organization**pursuant to this regulation, shall be used by all ships, or certain categories of ships or ships carrying certain cargoes in accordance with the provisions of each system so adopted.
2. The Organization is recognized as the only international body for developing guidelines, criteria and regulations on an international level for ship reporting systems. Contracting Governments shall refer proposals for the adoption of ship reporting systems to the Organization. The Organization will collate and disseminate to Contracting Governments all relevant information with regard to any adopted ship reporting system.
3. The initiation of action for establishing a ship reporting system is the responsibility of the Government or Governments concerned. In developing such systems provision of the guidelines and criteria developed by the Organization** shall be taken into account.
4. Ship reporting systems not submitted to the Organization for adoption do not necessarily need to comply with this regulation. However, Governments implementing such systems are encouraged to follow, wherever possible, the guidelines and criteria developed by the Organization**. Contracting Governments may submit such systems to the Organization for recognition.
5. Where two or more Governments have a common interest in a particular area, they should formulate proposals for a co-ordinated ship reporting system on the basis of agreement between them. Before proceeding with a proposal for adoption of a ship reporting system, the Organization shall disseminate details of the proposal to those Governments which have a common interest in the area covered by the proposed system. Where a co-ordinated ship reporting system is adopted and established, it shall have uniform procedures and operations.
6. After adoption of a ship reporting system in accordance with this regulation, the Government or Governments concerned shall take all measures necessary for the promulgation of any information needed for the efficient and effective use of the system. Any adopted ship reporting system shall have the capability of interaction and the ability to assist ships with information when necessary. Such systems shall be operated in accordance with the guidelines and criteria developed by the Organization** pursuant to this regulation.
7. The master of a ship shall comply with the requirements of adopted ship reporting systems and report to the appropriate authority all information required in accordance with the provisions of each such system.
8. All adopted ship reporting systems and actions taken to enforce compliance with those systems shall be consistent with international law, including the relevant provisions of the United Nations Convention on the Law of the Sea.
9. Nothing in this regulation or its associated guidelines and criteria shall prejudice the rights and duties of Governments under international law or the legal regimes of straits used for international navigation and archipelagic sea lanes.
10. The participation of ships in accordance with the provisions of adopted ship reporting systems shall be free of charge to the ships concerned.
11. The Organization shall ensure that adopted ship reporting systems are reviewed under the guidelines and criteria developed by the Organization.

* This regulation does not address ship reporting systems established by Governments for search and rescue purposes which are covered by chapter 5 of the 1979 SAR Convention as amended.

** Refer to the guidelines and criteria adopted by the Maritime Safety Committee of the Organization by resolution MSC.43(64), as amended by resolution MSC.111(73). Refer also to the General principles for ship reporting systems and ship reporting requirements, including guidelines for reporting incidents involving dangerous goods, harmful substances and/or marine pollutants, adopted by the Organization by resolution A.851(20).

MCA Guidance
1. United Kingdom ships anywhere in the world must comply with any mandatory ship reporting system adopted by IMO which applies to them.
2. Details of mandatory ship reporting schemes are promulgated through the Admiralty List of Radio Signals, including any amendments, corrections or replacements. Entries are annotated with the words: "Mandatory system under SOLAS Regulation V/11-1". The locations of ship reporting systems are shown on the relevant Admiralty Charts.
3. Ships to which a mandatory ship reporting system applies should report to the shore-based authority without delay when entering and, if necessary, when leaving the area covered by the system. A ship may be required to provide additional reports or information to update or modify an earlier report.
4. Failure of a ship's radiocommunications equipment would not, in itself, be considered as a failure to comply with the rules of a mandatory ship-reporting system. However, masters should endeavour to restore communications as soon as practicable. If a technical failure prevents a ship from reporting, the master should enter the fact and reasons for not reporting in the ship's log. Masters of ships which contravene mandatory ship reporting requirements may be liable to prosecution.

The following IMO-Adopted Mandatory Ship Reporting Systems are in place in adjacent UK jurisdictional waters:

In the Dover Strait / Pas de Calais (CALDOVREP)
Off Les Casquets and the adjacent coastal area (MANCHEREP)
Off Ushant (OUESSREP)

In addition reporting requirements for certain classes of oil tanker entering the Western European Particularly Sensitive Sea Area came into force on 1 July 2005. The reporting area extends from southern Portugal to the Shetland Islands. Full details of this scheme (West European Tanker reporting System - WETREP) are given in IMO Circular SN/Circ.242.


There are also several Voluntary Reporting Schemes around the coast of the UK. Ships are strongly urged to comply with the requirements of these voluntary schemes, details of which will be found on the relevant charts, IMO Ships' Routeing, Admiralty List of Radio Signals vol 6 and sailing directions.

UK Voluntary Reporting Schemes are in place in the following areas:

(a) Fair Isle Channel
(b) Pentland Firth
(c) The Minches
(d) Kyle of Lochalsh; and
(e) Isles of Scilly


Further information will be found in the following:

Admiralty List of Radio Signals Vol.6 part 1 (UKHO)

MGN 364 (M+F)Navigation: Traffic separation schemes - Application of Rule 10 and navigation in the Dover Strait

IMO Circular SN/Circ.242. Mandatory Ship Reporting System for the Western European Particularly Sensitive Sea Area

These guidance notes replace MGN 153 (M&F) - Compliance with Mandatory Ship Reporting Systems.


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