Section 113 of the Principal Act is amended as follows:

(a) by omitting from subsection (3)(a)(i) "the Plumbing Regulations" and substituting "this Act" ;

(b) by omitting from subsection (3)(a)(ii) "the Plumbing Regulations" and substituting "this Act" ;

(c) by inserting the following subsection after subsection (3) :

(3A)  In every year in which a permit authority accepts certificates under subsection (3)(a)(ii) , it must, at each mandatory notification stage, inspect, or cause to be inspected, at least 20% of the work for which certificates would otherwise be accepted.

(d) by omitting from subsection (4)(a) "the Plumbing Regulations" and substituting "this Act" ;

(e) by omitting from subsection (4)(b) "work." and substituting "work; or" ;

(f) by inserting the following paragraph after paragraph (b) in subsection (4) :

(c) it is satisfied that such a certificate is required but has not been provided.