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Building Act 1993
51Application of new regulations
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51 Application of new regulations
(1) A regulation or amendment to a regulation does not apply to
building work for which a building permit is granted under this Act
before the commencement of the regulation or amendment.
(2) A regulation or amendment to a regulation does not apply to
building work in respect of which a building certifier has certified in
writing that substantial progress was made on the design of the
building before the commencement of the regulation or
amendment.
(3) Despite subsections (1) and (2), a building certifier and the owner of
a building may agree that a regulation or amendment to a
regulation is to apply to building work referred to in those
subsections and, if an agreement is made, the regulation or
amendment applies accordingly.