The Architects Registration Board (ARB) was set up by Parliament to regulate architects in the UK. Our powers are governed by the Architects Act 1997. One of our duties is dealing with complaints about an architect’s conduct or their ability to do their job – their competence. This chart demonstrates our process for investigating a complaint. For more detailed information on making a complaint, see the section 'I want to make a complaint'. If you are an architect and want to read more about dealing with a complaint and ARB's complaints process, please refer to 'Dealing with a complaint'.