INTERTANKO – Athens
Tanker Event 2005
High Level Panel on Double Hull
Tankers
Ib Matthiesen – Head of Unit
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The size and weight of the European Union maritime sector:
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25 Member States, all with a maritime interest, all members of IMO
About one third of global shipping has an EU port as origin or destination
23 % of the world tonnage is registered in and flying the flag of an EU Member State
31 % of the world tonnage is controlled by EU interests
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The European Maritime Safety Agency (EMSA) was established by:
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Part of the “ERIKA II package”
Regulation (EC) 1406/2002 of the European Parliament and of the Council of 27th June 2002 establishing a
European Maritime Safety Agency (has been amended)
Accelerated set up following the Prestige incident
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Within the fields of maritime safety, pollution prevention from ships and ship security, EMSA has the following main operational objectives:
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To ensure the proper implementation of EU maritime legislation
To foster technical cooperation and development and disseminate best practice
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To provide technical advice to the Commission and
Member States
To provide operational capabilities, in particular to top up Member State’s capabilities for oil pollution response
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The European Commission, DG TREN, DG ENV and to a lesser extent DG TRADE, DG ENTR, DG FISH
The EU Member States and EMSA Member States
(Norway and Iceland),
The EU Citizen, represented by the European Parliament
Other interested parties, as required.
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EMSA’s stakeholders are reflected by the composition of the
Agency’s Administrative Board.

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The European Commission for technical issues at IMO, to coordinate EU Member States positions on most working groups (and subgroups)
Paris MOU and regional groups (HELCOM, Bonn
Agreement, Barcelona etc.)
For technical issues with new legislative consultations
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Staff: 95 in total
Budget for 2005 is 35,3 mio. Euros including 17,8 mio. for anti-pollution measures
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EMSA is divided into 6 Units,
Unit A: Resources
Unit B:
Unit C:
Unit D:
Unit E:
Unit F:
Operations and Support
Safety Assessments and Inspections
Implementation of EU Maritime Legislation
Technical Cooperation and Development
The operational task for oil pollution response
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High Level Panel on Double Hull Tankers
5 April 2005 Marpol Annex I concerning mandatory phasing out of single hull tankers came into force;
- i.e. phasing in of double hull tankers.
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High Level Panel on Double Hull Tankers
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High Level Panel on Double Hull Tankers
Yes, provided the double hull tanker is:
• Maintained to a high standard;
• Operated by personnel who are well trained and committed to their jobs;
• Designed and built to high standards.
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High Level Panel on Double Hull Tankers
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High Level Panel on Double Hull Tankers
• Established April 2004;
• 6 meetings held; concluding meeting on 31st
March 2005.
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High Level Panel on Double Hull Tankers
Participants:
• The Community of European Shipyards Associations
(CESA);
• Baltic and International Maritime Council (BIMCO);
• European Maritime Safety Agency (EMSA);
• International Association of Classification Societies
(IACS);
• International Chamber of Shipping (ICS);
• International Maritime Organisation (IMO);
• International Association of Independent Tanker Owners
(INTERTANKO);
• Oil Companies International Marine Forum (OCIMF).
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High Level Panel on Double Hull Tankers
Terms of Reference
1. Scope:
To collect and analyse feedback from experience in the design, construction, operation, maintenance and survey of double hull tankers of all types and sizes and identify factors that may have an adverse impact on the structural integrity of the vessels.
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High Level Panel on Double Hull Tankers
Terms of Reference
2. Objective:
To produce a concise summary report that proposes solutions for any areas of concern that the panel has identified together with recommendations for action.
The report should also suggest methods by which its proposals may be implemented and this may include:
2.1 Amendments to IMO requirements;
2.2 Amendments to Classification rules;
2.3 Improved guidelines for Industry;
2.4 Enhanced ‘in-service’ maintenance;
2.5 Research .
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High Level Panel on Double Hull Tankers
Areas for consideration:
1. Accelerated structural corrosion in water ballast and cargo tanks;
2. The lack of mandatory provisions relating to coatings for cargo and ballast tanks;
3. Fatigue;
4. A demanding and difficult maintenance regime which, if not properly observed could lead to structural deterioration;
5. Lack of an international standard and of procedures to monitor/control workmanship during the vessel new building stage;
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High Level Panel on Double Hull Tankers
Areas for consideration:
6. Lack of an international standard and of procedures to monitor/control workmanship during vessel repairs;
7. Inconsistencies between Classification
Societies in their approach to inspection and survey – during newbuilding and during repairs on vessels in service;
8. Possible use of inert gas in ballast spaces;
9. Hydrocarbon gas detection in ballast spaces;
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High Level Panel on Double Hull Tankers
Areas for consideration:
10. Alignment (misalignment) between structural members (may lead to failures in service);
11. Structural geometry and member thicknesses;
12. Access for structural surveys in service;
13. Robust designs and fitness for purpose;
14. Corrosion margins on newbuild hull structural elements.
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High Level Panel on Double Hull Tankers
Recommendations:
1. Concern: Corrosion in ballast tanks.
Control measure: Improved coating performance.
Implementation: SOLAS Reg II-I/3-2 should be amended to introduce a mandatory performance standard (target life 15 years) for the coatings that are required in the ballast tanks of new double hull oil tankers of 150m and above. The performance standard that is currently being proposed for the ballast tanks of
Bulk Carriers would be a suitable standard to mandate.
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High Level Panel on Double Hull Tankers
Recommendations:
2. Concern: Corrosion in cargo tanks; tank top and deckhead.
Control measure: Coating of these two areas.
Implementation: SOLAS Reg II-1/3 should be amended, with the possible addition of a new reg 3-7 to mandate additional corrosion protection (coatings) for the internal deckhead and tank top areas of cargo tanks in newbuild tankers of 150m in length and above.
Exemption to be possible.
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High Level Panel on Double Hull Tankers
Recommendations:
3. Concern: Corrosion in cargo tanks.
Control measure: Performance standard for cargo tank coatings.
Implementation: SOLAS Reg II-I/3 should be amended to introduce a mandatory performance standard (coating life) for the coatings that are recommended (in this report) for the cargo tanks of new double hull oil tankers of 150m and above. IACS may develop this standard with Industry by means of the joint working group on corrosion.
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High Level Panel on Double Hull Tankers
Recommendations:
4. Concern: Corrosion in ballast or cargo tanks.
Control measure: Repair and maintain coating.
Recommendation: it is recommended that vessel owners repair and maintain the tank coating systems on their vessels in accordance with the coating repair standard that has been developed by IACS (Guidelines for coating maintenance and repairs for ballast tanks and combined cargo/ballast tanks on oil tankers). The repair standard may be referenced within the proposed
TSCF maintenance manual.
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High Level Panel on Double Hull Tankers
Recommendations:
5. Concern: Cracks due to fatigue.
Control measure: An appropriate response to fatigue failures to be developed that includes fatigue analysis when appropriate and pro-active repairs or modifications as may be necessary.
Implementation: IACS to develop guidance for identifying significant failures caused by fatigue and procedures to be followed when dealing with such identified cases. Revisions to IMO Resolution A.744(18) should also be considered.
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High Level Panel on Double Hull Tankers
Recommendations:
6. Concern: Variations in workmanship and construction standards during new building and during repairs.
Control measures: Establish international standards for hull construction, including TSCF recommendations for repairs. Harmonize the content, standards and procedures of the initial hull Classification survey.
Harmonize the content and standards of initial statutory surveys. Establish and harmonize standards for hull repairs on existing vessels.
Implementation: IACS to develop standards, procedures and requirements that will enable the harmonization of newbuild Classification surveys (with a view to issuing as Unified Requirement). Modifications to IMO Resolution A.948(23) should be considered to improve initial statutory surveys.
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High Level Panel on Double Hull Tankers
Recommendations:
7. Concern: Cargo seepage into ballast tanks.
Control measure: Fixed hydrocarbon gas detection system to be provided within double hull and double bottom spaces of tankers to allow constant monitoring of tank atmospheres.
Implementation: SOLAS Reg II-I/5.7 to be amended to require that fixed hydrocarbon gas detection systems, giving constant monitoring of double hull and double bottom tank atmospheres, are made mandatory in new tankers; only on those vessels required to be provided with an inert gas system in the cargo tanks:
20000 DWT and above or using crude oil washing.
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High Level Panel on Double Hull Tankers
Recommendations:
8. Concern: Cargo seepage into ballast tanks.
Recommendation: The owners and operators of existing double hulled taners should be encouraged to consider fitting fixed hydrocarbon gas detection systems within the double hull and double bottom spaces of their vessels.
IACS to establish standards and requirements for a suitable fixed hydrocarbon gas detection system
(possibly by means of a joint working group with
Industry).
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High Level Panel on
Recommendations:
• 9. Concern: Corrosin and fatigue in ballast and cargo tanks
Control measure: Hull maintenance
Implementation: Appropriate procedures and standards for repairs and maintenance need to be established.
(possibly the new TSCF maintenance manual could be means by which this could be introduced; as an IMO resolution or linked to Classification).
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High Level Panel on Double Hull Tankers
• The recommendations to be implemented through:
• 1. Amendments to IMO Conventions
• 2. Amendments to classification requirements and procedures
• 3. Improved guidelines and self regulation by Industry
• Final report expected to be approved by the Panel June
2005
• Benchmark meeting in autumn 2005 to assess progress made in implementation of recommendations and the
Maintenance Manual from TSCF
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