4(1)In section 41A (limit of duration of planning permission for winning and working of minerals), in subsection (1) for “consisting of the winning and working of minerals” there is substituted “—
(a)consisting of the winning and working of minerals; or
(b)involving the depositing of mineral waste,”.
(2)In subsections (2), (3) and (5) of that section for “development”, in each place where it occurs, there is substituted “winning and working of minerals or the depositing of mineral waste”.
(3)In subsections (6) and (7) of that section the words “consisting of the winning and working of minerals” in both places where they occur, are omitted.