Development is not permitted by Class A if–
(a)it consists of the drilling of boreholes for petroleum exploration;
(b)any operation would be carried out within 50 metres of any part of an occupied residential building or a building occupied as a hospital or school;
(c)any operation would be carried out within a National Park, an area of outstanding natural beauty, a site of archaeological interest or a site of special scientific interest;
(d)any explosive charge of more than 1 kilogram would be used;
(e)any excavation referred to in paragraph A(c) would exceed 10 metres in depth or 12 square metres in surface area;
(f)in the case described in paragraph A(c) more than 10 excavations would, as a result, be made within any area of 1 hectare within the land during any period of 24 months; or
(g)any structure assembled or provided would exceed 12 metres in height, or, where the structure would be within 3 kilometres of the perimeter of an aerodrome, 3 metres in height.