Section 3 Application
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 1 Regulations - Chapter 6 Guidelines for Classification using Risk Based Inspection Techniques - Section 3 Application

Section 3 Application

3.1 General

3.1.1 RBI techniques may be used to provide justification for the assignment of Class. RBI techniques may be systematically applied to the whole of an installation or to individual systems, sub-systems or components.

3.1.2 Where RBI is applied to only part of an installation, the remainder of the installation is to be designed, constructed and maintained in accordance with the remaining Parts of these Rules.

3.1.3 Similarly, a unit will continue to be classed by LR, provided LR has verified that all critical elements remain in good order and condition, and continue to meet their standards in operation. Otherwise, classification will be subject to continued compliance with LR’s Rules.

3.1.4 It is the responsibility of the Owner/Operator to comply with any requirements of the National Administration. Where an RBI plan differs from those required by the National Administration or IMO Conventions, it is the responsibility of the Owner/Operator to obtain the necessary acceptance of the National Administration.

3.1.5 It is the responsibility of the Owner/Operator to develop, operate and review application of the RBI Plan and the RBI Plan is then to be approved by LR. The Owner/Operator shall demonstrate that the plan is being regularly reviewed according to the review schedule and any changes to the approved inspection regime are recorded in a satisfactory manner to enable audit and continued approval of the RBI Plan.

3.1.6 Lloyd’s Register’s Guidance Notes for the Risk Based Inspection of Offshore Units define acceptable RBI methodologies.

3.2 Survey using Risk Based Inspection

3.2.1 Where Classification using Risk Based Inspection techniques is proposed, surveys should meet the requirements laid out in Pt 1, Ch 5, 4 Verification – New Construction.


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