Section 174 of the Principal Act is amended as follows:

(a) by inserting the following subsection after subsection (1) :

(1A)  A notification under subsection (1) may specify that the repeal to which the notice relates is a self-executing repeal.

(b) by inserting in subsection (2) ", unless the repeal is a self-executing repeal" after "as adopted" ;

(c) by inserting the following subsection after subsection (2) :

(3)  If a notification of the repeal of a model by-law under subsection (1) specifies that the repeal is a self-executing repeal, a model by-law, adopted by a council, that consists of the repealed model by-law (as amended, if at all, under this Part), is repealed on and from the date of the notification.