Sch 2 para 18 Interpretation of this Schedule
In this Schedule— “ establishment period ” (“ cyfnod sefydlu ”) means the period of 12 months ending on— 4 September 2015; or (if later) the date on which hazardous substances consent was first required for the relevant substance; “ relevant minor change ” (“ mân newid perthnasol ”) means a change to the quantity or type of hazardous substances present in, on or under land in relation to which there is a hazardous substances consent, where hazardous substances consent would be required for that change but for this Schedule; “ safety hazard change ” (“ newid o ran perygl diogelwch ”) means a change to an area notified to a local planning authority by the Health and Safety Executive or the Office of Nuclear Regulation for the purposes of paragraphs (c) or (ca) of the Table in Schedule 4 to the Town and Country Planning (Development Management Procedure) (Wales) Order 2012 , where that change results in— that area encompassing land which it did not previously encompass; or where the notification of that area included the identification of zones within that area corresponding to levels of risk, the expansion of any such zone.