DNV has launched a significant revision to the rules for wind farm service vessels (WFSV) to improve the safety of these specialized vessels which are undertaking multiple roles further and further offshore. The announcement was made at the Seawork exhibition and forum which is taking place between June 25-27 June in Southampton, U.K. DNV was first to publish rules for WFSV in January 2011 to provide the wind farm industry with an improved construction standard which would be accepted by regulators in the North Sea Basin.