75. Section 252 of the Principal Act is amended—
(a) by omitting from subsection (1) “conduct a controlled activity (other than an activity specified in item 2 or 3 of Schedule 4)” and substituting “undertake a development (other than a development that consists wholly of a variation of a lease)”;
(b) by omitting from subsection (1) “the activity” (wherever occurring) and substituting “the development”; and
(c) by omitting from subsection (2) all the words after “which” and substituting “the development, or the stage of the development, is to be completed.”.