Section 4 Current practice
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Guidance Notes for the Classification of Wind Farm Service Vessels, July 2012 - Chapter 1 Windfarm Service Vessels - Section 4 Current practice

Section 4 Current practice

4.1 General

4.1.1 Currently owners requesting to class their WFSVs with LR, for a vessel operating in Service Area G2, may be assigned the following typical class notation with a descriptive note.

Hull notation: 100 A1 SSC Workboat G2
Machinery notation: MCH
Descriptive note: Wind Farm Service Vessel

4.1.2 It is anticipated that vessels serving offshore wind farms will be assigned Service area restriction notations G2 or G3.

4.1.3  G2 Service Group 2 covers craft intended for service in reasonable weather, in waters where the range to refuge is 20 nautical miles or less. This group will usually cover craft intended for service in coastal waters, for which geographical limits are to be identified by the Builder and agreed with LR.

4.1.4  G3 Service Group 3 covers craft intended for service in waters where the range to refuge is 150 nautical miles or less. The geographical limits of the intended service are to be reported to LR.

4.1.5 In order to obtain LR Class and the above class notation, Owners will have to comply with all applicable parts of the Rules for Special Service Craft.

4.1.6 For vessels built under LR Special Survey in accordance with plans approved by another recognised Classification Society, the distinguishing mark , may be assigned to the hull notation.


Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.