The objective of the audit was to assess the effectiveness of the Tax Office's administration of the wine tax.

Four key areas were examined in the audit: governance arrangements; interpretative assistance and advice; compliance approaches for Australian entities; and administering the rebate for New Zealand wine producers.

The ANAO conducted fieldwork in the Tax Office's Adelaide office between May and September 2010 and also held discussions with representatives from Customs, the Department of the Treasury (Treasury) and New Zealand Inland Revenue. The ANAO also consulted with representatives of wine producers, wholesalers, retailers, tax agents and key industry associations, seeking their views on elements of the Tax Office's administration of the wine tax.

The audit examined aspects of the integrity and management of customer data stored on ISIS. In particular, the audit considered measures of data accuracy, completeness and reliability. The scope of the audit also extended to aspects of Centrelink's IT control environment - in particular, controls over data entry.

The objective of the audit was to assess if DBCDE had effectively managed the ABG program, and the extent to which the program was achieving its stated objectives. The audit examined DBCDE's activities supporting the planning, implementation, monitoring and performance reporting for the ABG program from its commencement in April 2007 to June 2010.

The objective of this audit was to examine the effectiveness of Medicare Australia's administration of the PBS. In assessing the objective, the audit considered three key areas:

• Medicare Australia's relationship with the PBS policy agency (DoHA) and service delivery policy agency (Department of Human Services (DHS));
• the management arrangements and processes underpinning Medicare Australia's delivery of the PBS (including the means by which Medicare Australia gains assurance over the integrity of the PBS); and
• how Medicare Australia undertakes its three main responsibilities relating to the delivery of the PBS, namely: approving pharmacies; approving authority prescriptions; and processing PBS claims.

The objective of the audit was to assess whether the WHM programme is administered effectively and in accordance with relevant laws and policies. In particular, the ANAO focused on four key areas: the implementation of eWHM visa; authority for the WHM programme; decision-making for WHM visas; and programme performance information. A feature of the audit was the computer-aided scrutiny of over 300 000 visa application records to test DIMA's decision-making processes.

The Australian Customs Service (Customs) is responsible for managing the integrity of Australia's border. The Australian maritime border is the 200 nautical mile Exclusive Economic Zone (EEZ) around Australia's 37 000 kilometre coastline. The National Marine Unit (NMU) contributes to customs' Civil Maritime Surveillance and Response program. It has eight 35 - metre Bay Class vessels (known as Australian Customs Vessels or ACVs) that are capable of maintaining a strategic presence around the Australian coast. The audit examined the administrative effectiveness of the NMU's surveillance and response operations. Particular emphasis was given to the following areas:

• strategic and tactical taskings;
• crew operations;
• crew training;
• asset management; and
• governance arrangements.

The fleet oiler HMAS WESTRALIA was a key element of the Royal Australian Navy (hereafter referred to as ‘Navy') Maritime Operations Support Capability (MOSC) from 1989 until September 2006. WESTRALIA provided logistic support to naval operations and exercises and contributed to Defence international engagement through these activities. The new vessel to replace WESTRALIA is called HMAS SIRIUS and was commissioned by Defence in mid September 2006, which was concurrent with the formal decommissioning of WESTRALIA. This approach was adopted by Defence to ensure that Navy maintained a continuous afloat support capability.

The objective of the audit was to assess the effectiveness of the implementation and administration of the Small Business Superannuation Clearing House.

The objective of the audit was to examine the accuracy of Medicare claims processing, including the adequacy and operation of relevant manual and system processes. The audit assessed the:

• adequacy and operation of relevant manual and system controls used to support the reliable processing of Medicare claims, and
• accuracy of the assessing and processing of Medicare claims, using Computer Aided Audit Techniques (CAATs).

The objective of the audit was to review and assess the use, and management of, automatic exchanges of information under Double Taxation Agreements (DTAs) by the Tax Office.