The audit reviewed the Australian Taxation Office's administration of the payment of tax by non-residents. The audit objectives were to:

• provide Parliament with assurance about how efficiently and effectively the ATO administers the payment of tax in respect of non-residents;
• identify any scope for more effective and efficient administration of the function; and
• identify any opportunities for the cost-effective collection of additional revenue.

The objective of the audit was to determine whether the controls and measures employed by FaCS and Centrelink to deliver Parenting Payment Single (PPS) payments were effective and efficient. To achieve this, the audit focused on four key areas. These were:

• the quality of performance measures used by FaCS and Centrelink;
• the effectiveness of FaCS' methodology for estimating the levels of risk of incorrect payment to PPS customers and the impact of these incorrect payments on the integrity of program outlays;
• the correctness of Centrelink's processing of reassessments; and
• the improvements to preventive controls such as training, guidance material, and the Quality On-Line system.

This audit followed up the ANAO's 1999 performance audit report on the Commonwealth's planning and response mechanisms to deal with exotic and new endemic pest and emergencies in the animal and plant sectors (Audit Report No 9 1999-2000 Managing Pest and Disease Emergencies). The previous audit made nine recommendations to improve planning and response strategies for emergencies; better coordination; diagnostic support; and appropriate monitoring and surveillance. The objective of the follow-up audit was to assess AFFA's implementation of the recommendations, and whether implementation of these recommendations, or appropriate alternative measures, has improved the Commonwealth's planning and response strategies for pest and disease emergencies. The ANAO also observed and assessed relevant parts of the September 2002 foot and mouth disease simulation, Exercise Minotaur.