Under clause 42.1 of AS4303-1995 (and the equivalent provision in AS2124-1992), the provision of evidence and information to support a progress claim is a condition precedent to the superintendent's obligation to issue a payment certificate, following the Brewarrina majority. The question whether an equitable set-off is available against accrued progress payment rights after termination of the contract under clause 44.4(b) remains unresolved, with the Victorian Court of Appeal declining to follow Byrne J's view that no set-off is available and noting the contrary obiter view of the Queensland Court of Appeal in QUT v Project Constructions. No formal notice of suspension is required under clause 44.4; the giving of a show cause notice under clause 44.2 is sufficient.
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