(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.

(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.