The NCC, Volume Three, also known as the PCA, contains the technical requirements for the design and construction of plumbing and drainage systems in new and existing buildings.

The PCA is developed through a rigorous process of consultation, industry forums, proposals for change and ABCB commissioned research.

Plumbing Code Research

A number of PCA Research and Development Projects have recently been completed or are underway. These projects provide valuable information and input into the development of the PCA.

Read more on the PCA, backflow prevention, lead in plumbing products, water services, sanitary plumbing and drainage and rainwater tabs below.

Additional plumbing resources are available in our resource library, or on the links below. If you want to keep up to date with current information, make sure you have opted in to our communications for ABCB Connect.