162. From the date of coming into force of the planning program of a municipality, sections 138 to 141 and section 151 cease to apply in respect of a heritage site or part of a heritage site that is not situated in a zone included in the planning program as a zone to be protected.
A municipality must, within 90 days following the date of coming into force of its planning program, amend or repeal the by-law adopted under section 161 to recognize the heritage site, if the site is not entirely situated in a zone included in its planning program as a zone to be protected.
In that case, section 128, except paragraph 4, the first and second paragraphs of section 131 and section 133 apply, with the necessary modifications.
The amending or repealing by-law comes into force upon adoption.