(1)  A certificate of likely compliance (permit plumbing work) issued under this Subdivision expires 12 months from the date of issue.

(2)  Despite subsection (1) , a certificate of likely compliance (permit plumbing work) issued under this Subdivision that is in force when submitted with an application for a plumbing permit –

(a) is taken to form part of any plumbing permit issued as a result of that application; and

(b) remains in force until that plumbing permit expires or lapses.