30In section 21 of the Town and Country Planning (Scotland) Act 1972 (development orders), for subsection (3) (general and special orders) substitute—
“(3)A development order may be made either—
(a)as a general order applicable, except so far as the order otherwise provides, to all land, but which may make different provision with respect to different descriptions of land, or
(b)as a special order applicable only to such land or descriptions of land as may be specified in the order.”.