Consultation outcome

Consultation on alternative verification methods for tankers

• From: Maritime and Coastguard Agency
• Published: 26 October 2018
• Last updated: 16 July 2019 — See all updates

This consultation has concluded

Read the full outcome

Proposed MGN: Damage Stability - Alternative verification method for tankers - UK interpretations and procedures

PDF, 676 KB, 50 pages

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Detail of outcome

The above proposed MGN shows the changes made as a result of this consultation.

Feedback received

Responses to the damage stability of tankers consultation

MS Excel Spreadsheet, 34 KB

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Detail of feedback received

A table of consultation comments and the MCA’s responses.

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Original consultation

Summary

Damage stability - alternative verification method for tankers - UK interpretations and procedures

This consultation ran from
26 October 2018 to 11:59pm on 20 December 2018

Consultation description

This notice clarifies areas of responsibility and UK procedures when applying the 2014 amendments to MARPOL Annex 1 chapter 1 regulation 3(6) and chapter 4 regulation 28(6) concerning the fitting of stability instruments on board oil tankers and the consequent amendments to the IOPP Certificate in APPENDIX II (Form B). Similar amendments on fitting stability instruments were made at the same time to the IBC Code, BCH or EGC Code, the IGC Code and the GC Code with equivalent modifications to their respective Certificates of Fitness.

Experience gained in applying the associated IMO Guidelines, MSC.1/Circ.1461, since they came into force on 8th July 2013 indicates that there are still some matters requiring clarification and/or interpretation, for example the issuance of waivers from using a stability instrument and the appropriate methods of demonstrating compliance with the required damage stability regulations when such an instrument is not employed either on board or via links to a shore support station.

The aim of this notice is to improve understanding and consistency of application of the Regulations and Guidelines and to re-emphasize that the MCA’s expectation is that all UK tankers should be fitting IACS URL5 – Type 3 stability instruments capable of verifying damage stability by direct calculation on the hull form and compartments rather than through use of tables or limiting KG/GM curves.

Only in limited case-by-case circumstances, when evidence is provided to the MCA/RO that the ship will still comply with the IMO requirements by using the alternative verification method, will a waiver be agreed to permit the non-fitment of a stability instrument.

Documents

Consultation Document: Draft MGN on Damage Stability - Alternative Verification Method for Tankers - UK Interpretations and Procedures

MS Word Document, 72.8 KB

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Tanker Damage Stability MGN

MS Word Document, 803 KB

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Published 26 October 2018
Last updated 16 July 2019 + show all updates

1. 16 July 2019

   Addition of proposed MGN

2. 26 March 2019

   Added the responses table

3. 26 October 2018

   First published.