Escalating state and territory variations to the National Construction Code (NCC) are eroding national consistency, increasing costs, and placing pressure on contractors, manufacturers, and product suppliers.
Victoria and Tasmania (by default) are the only jurisdictions to meet the original projected NCC start date of May 1 with three states adopting it on May 1, 2027.
The remaining jurisdictions have adopted a May 1, 2026 implementation date but it is accompanied by a 12-month transition period. These differing timelines are in addition to jurisdiction-specific amendments.
Building Products Industry Council (BPIC) executive officer Rodger Hills said one of the most vocal critics of the NCC, Tasmania, has introduced 125 new variations to NCC 2025, on top of the 25 variations already present in NCC 2022.
“This amounts to more than 150 jurisdiction-specific changes, adding over 53 pages of additional requirements that Tasmanian practitioners must interpret and apply,” Hills said.
“The situation is even worse in NSW where changes increased from 16 in NCC 2022 to more than 210 in NCC 2025. Of particular concern is the lack of national oversight or transparency applied to state variations.
“Without effective reform to jurisdictional variation practices, the benefits of a modernised NCC risk being overshadowed by continued regulatory fragmentation.”
The Air Conditioning Mechanical Contractors Association (AMCA) president, Ben Hawkins, agrees the varied implementation dates create complexity.
“Contractors, designers, and suppliers operating across multiple jurisdictions will be required to navigate different NCC editions, varying commencement dates, and jurisdiction-specific provisions, often within the same project pipeline,” Hawkins said.