The National Construction Codes Series (NCC) (formerly known Building Code of Australia or BCA, and Plumbing Code of Australia or PCA) was developed by the Australian Buildings Code Board (ABCB). It is in three volumes.
NCC 2019, Volume One: Contains the requirements for multi-residential, commercial, industrial and public buildings and structures.
NCC 2019, Volume Two: Contains the requirements for residential and non-habitable buildings and structures.
NCC 2019, Volume Three: Contains the requirements for plumbing and drainage for all classes of buildings.
The National Construction Code 2019 is freely available online. An individual registration is required.