8For paragraph 11(1) there is substituted—
“11(1)Where—
(a)a planning authority are directed under paragraph 3 to make a simplified planning zone scheme which the Secretary of State considers appropriate or to alter such a scheme in such manner as he considers appropriate, and
(b)the Secretary of State is satisfied, after holding a local inquiry or other hearing, that the authority are not taking within a reasonable period the steps required by this Schedule for the adoption of proposals for the making or, as the case may be, alteration of a scheme,
he may himself make a scheme or, as the case may be, the alterations.”