IOPSA provides an industry forum for plumbers, suppliers, manufacturers, professional specifiers and building & draining authorities. The Institute provides a platform to advise on the practice and principles of the plumbing industry. The Institute regularly consults and liaises with the plumbing industry, governmental and regulatory bodies for the discussion of matters affecting the plumbing industry.

The PIRB proactively promotes quality workmanship by means of issuing a Plumbing Certificate of Compliance (CoC). This CoC may be issued by a Licenced Plumber – that is – a qualified plumber registered with the PIRB. 

The PIRB covers the following sectors:

- National Regulator

- Senior Building control (officer)

- Insurance (representative)

- Department of Water Affairs

- Manufacturers

- Merchants

- Plumbing contractors

- Training providers