Paragraph 22 InterpretationI1

“audit” means systematic assessment of the adequacy of the management system to achieve the purpose referred to in paragraph 6 carried out by persons who are sufficiently independent of the system (but who may be employed by the duty holder) to ensure that such assessment is objective;

;“management system” means the organisation and arrangements established by the duty holder for managing his undertaking;

any reference to an operation intended to be undertaken by the duty holder is a reference to his intended operation of conveying gas in a network.