The TPB has the general administration of the Tax Agent Services Act 2009 (TASA) and is responsible for the registration and regulation of tax practitioners. These include tax agents and business activity statement (BAS) agents. The TPB also has the responsibility to monitor and take action against unregistered preparers. The TPB?s establishment, functions and powers are defined in the TASA. The TPB?s role is to ensure that tax practitioner services are provided to the public in accordance with appropriate standards of professional and ethical conduct.