The NNC code is in three volumes:
Volumes One and Two: Building Code of Australia (BCA) Volume One covers Class 2 to 9 buildings. Volume Two covers Class 1 and Class 10 buildings (houses, sheds, carports, etc.).
Volume Three: Plumbing Code of Australia (PCA) This volume covers plumbing and drainage associated with all classes of buildings.
First-time users need to register for free (create a personal account) to access, download and print NNC online content. See: https://ncc.abcb.gov.au/user/register
Note: