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CLASS SOCIETY PUBLISHES BEST PRACTICE FOR RECOMMISSIONING LAID-UP SHIPS

Thursday, March 14, 2019 

DNV GL has accumulated its best practices into a revised Recommended Practice (RP) containing a new approach for assurance of non-class equipment and systems during recommissioning of laid-up vessels.

Through 2018 and to date DNV GL has seen signs of careful optimism in both shipping and offshore markets. Based on Lloyd’s List intelligence, the number of inactive vessels has reduced – from about 850 vessels in early 2018 to some 800 inactive vessels today.

For many operators and shipyards with laid-up vessels, this has brought both opportunities and challenges in terms of how well the vessel has been maintained or preserved during the lay-up period. The quality of maintenance and preservation is a determining factor when bringing back the vessel effectively into operation. DNV GL has worked with a broad range of ship and MOU owners and operators on implementing cost-effective practices for preservation and recommissioning.

The image shows a hydraulic system part in need of overhaul due to the acidity created after the wrong preservation liquid was applied.

In response to market needs, DNV GL has updated its DNVGL-RP-0290 Lay-up and recommissioning of ships and mobile offshore units with a focus on industrial best practices for preservation and recommissioning.

The new, updated RP has introduced a dedicated section to respond to the challenges during recommissioning, with a focus on equipment not covered by class scope. The RP includes the following:

 

  • Guidance for lay-up
  • Guidance for preservation
  • Guidance for clean lay-up
  • Guidance for recommissioning
  • DNV GL lay-up services

 

DNV GL recommends that vessel owners prepare the process carefully before reactivating vessels. The DNVGL-RP-0290 contains best-practice recommendations for a successful layup and recommissioning process.

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