Scope and Conditions of Classification Classification The term classification@ as used herein@ indicates that a mobile offshore unit@ operating on the Norwegian Continental Shelf (NCS)@ has been designed@ constructed@ installed and surveyed in compliance with this Guide@ applicable existing ABS Rules and Guides or other acceptable standards. General principles and procedures related to classification covered in this Guide are stated in the applicable ABS Rules. The continuance of classification is dependent on the fulfillment of requirements for surveys after construction. According to the Norwegian Petroleum Act@ the Owner is fully responsible for verification activities to ensure that operation of units and systems are in compliance with the applicable regulatory requirements. Therefore@ the ultimate responsibility for shutting down operations beyond the limit specified in unit and system design basis does not rest upon the ABS Classification Committee.