Special measures ensure improvements. A school subject to special measures will have regular short-notice Ofsted or Estyn inspections to monitor its improvement. The senior managers and teaching staff can be dismissed and the school governors replaced by an appointed executive committee. If poor performance continues the school may be closed as in the case of the Frank Montgomery School in Kent. The current circumstances under which a school may be placed in special measures, and the procedures to follow, are stipulated by the Education Act 2005. Prior to 2005 special measures were applied to any school which was failing to supply an
Coal measures Coal measures The coal measures is a lithostratigraphical term for the coal-bearing part of the Upper Carboniferous System. The Coal Measures Group consists of the Upper Coal Measures Formation, the Middle Coal Measures Formation and the Lower Coal Measures Formation. The group records the deposition of fluvio-deltaic sediments which consists mainly of clastic rocks (claystones, shales, siltstones, sandstones, conglomerates) interstratified with the beds of coal. In most places, the coal measures are underlain by coarser clastic sequences known as Millstone Grit, of Namurian age. The top of the coal measures may be marked by an unconformity, the overlying rocks being