2In section 57(6), omit the words " Except in so far as this Act otherwise provides " ; and after that subsection insert—
“(6A)Subsection (6) does not apply if the relevant works have not been begun and either—
(a)more than 2 years have elapsed since the date on which the previous application was approved ; or
(b)the application is made with a view to taking advantage of orders under section 59 below.”