Key difference
The NT is not an east-coast claim model
Either contractor or principal may make a qualifying payment claim, and residential construction is generally covered. There is no universal requirement to label every claim as made under the Act. The written claim procedure in the contract controls where one exists; if it does not, statutory implied terms supply minimum content. A payment dispute can arise when a claim is rejected or disputed, or when payment is not made when due. Any adjudication clock runs from that dispute event—not automatically from the invoice date.