534Meaning of modification of a facility

534 Meaning of modification of a facility (1) In these Regulations, a reference to a modification of a major hazard facility is a reference to a change or proposed change at the major hazard facility that has or would have the effect of: (a) creating a major incident hazard that has not previously been identified; or (b) significantly increasing the likelihood of a major incident occurring; or (c) in relation to a major incident that may occur – significantly increasing: (i) its magnitude; or (ii) the severity of its health and safety consequences. Work Health and Safety (National Uniform Legislation) Regulations 2011 423 (2) For the purposes of subregulation (1), a change or proposed change at a major hazard facility means a change or proposed change of any kind, including any of the following: (a) a change to any plant, structure, process or chemical or other substance used in a process, including the introduction of new plant, a new structure, a new process or a new chemical; (b) a change to the quantity of Schedule 15 chemicals present or likely to be present at the major hazard facility; (c) a change to the operation, or the nature of the operation, of the major hazard facility; (d) a change in the workers' safety role; (e) a change to the major hazard facility's safety management system; (f) an organisational change at the major hazard facility, including a change in its senior management.