Section 165 of the Principal Act is amended by inserting after subsection (2) the following subsection:

(3)  Subsection (2)(b)(i) does not apply in respect of an application under this section for proposed permit plumbing work, or a stage of proposed permit plumbing work, if the relevant permit authority agrees to that application being made at the same time as an application under section 156 for a certificate of likely compliance (permit plumbing work) for that proposed permit plumbing work.