B.1 Development is not permitted by Class B—
(a)in relation to land at an underground mine—
(i)on land which is not an approved site; or
(ii)on land to which the description in paragraph N.2(1)(b) of this Part applies, unless a plan of that land was deposited with the mineral planning authority M1 before 5th June 1989; or
(b)if the principal purpose of the development would be any purpose other than—
(i)purposes in connection with the operation of the mine;
(ii)the treatment, preparation for sale, consumption or utilization of minerals won or brought to the surface at that mine; or
(iii)the storage or removal from the mine of such minerals, their products or waste materials derived from them.
Marginal Citations
M1See section 1(4) of the Act.