(1) The responsible person for permit building work must (a) notify the building surveyor within the prescribed period before the completion of each mandatory notification stage of the work; and(b) stop performing that work or any part of that work on completion of a mandatory notification stage until permitted to proceed under the Building Regulations.Penalty: In the case of (a) a natural person, a fine not exceeding 50 penalty units; or(b) a body corporate, a fine not exceeding 250 penalty units.(2) On being notified under subsection (1) that a mandatory notification stage in respect of any permit building work is to be completed, the building surveyor may inspect the work, or cause the work to be inspected, within the prescribed period.(3) Nothing in this section prevents a building surveyor from inspecting permit building work at any time, whether or not a mandatory notification stage has been completed.(4) A building surveyor may cause any building work to be demolished, opened, cut into or tested if it is reasonably required to facilitate an inspection of permit building work under this Act.