Paragraph 12
In so far as an enforcement notice could, of this Act had not been passed, have been served by virtue of section seventy-five of the Act of 1947, at a time on or after the date of the commencement of this Act, in respect of any works or use of land of a description to which that section applied, there shall subsist by virtue of this paragraph a corresponding power in the like circumstances to serve an enforcement notice (to the like effect as that which could have been so served) in respect of those works or that use of land.
Subsections (3) and (5) of section forty-five and (subject to paragraphs 13 to 16 of this Schedule) sections forty-six to fifty-one shall have effect in relation to an enforcement notice served by virtue of this paragraph as they have effect in relation to an enforcement notice served under section forty-five.