B.1 Development is not permitted by Class B if—
(a)it consists of the drilling of boreholes for petroleum exploration;
(b)the developer has not previously notified the mineral planning authority in writing of his intention to carry out the development (specifying the nature and location of the development);
(c)the relevant period has not elapsed;
(d)any explosive charge of more than 2 kilograms would be used;
(e)any excavation referred to in paragraph B(c) would exceed 10 metres in depth or 12 square metres in surface area; or
(f)any structure assembled or provided would exceed 12 metres in height.