The Australian Treaties Library
The Department of Foreign Affairs and Trade maintain the Australian Treaties Library website. It contains information on proposed Treaty action, full texts of Australian Treaties currently in force, and provides links to other related sites.
The Australian Treaties Library

Defence Sponsored Treaties
Security Agreements
Security Agreements serve as the formal basis for the reciprocal protection of classified information. They set out security procedures and practices for the exchange and protection of classified information between Governments.

Security Agreement with New Zealand
Security Agreement with Denmark
Security Agreement with Canada
Security Agreement with Singapore
Security Agreement with Sweden
Security Agreement with South Africa

Status of Forces Agreements (SOFA)
The understandings between governments regarding visiting military forces are commonly addressed in a Status of Forces Agreement (SOFA). A SOFA is an internationally recognised means of handling the issues arising out of the presence of one country’s visiting forces in the territory of another country. Australia has a SOFA concerning United States Forces in Australia, a reciprocal SOFA with Papua New Guinea, a SOFA with Singapore to complement the Five Power Defence Arrangements (FPDA) Agreement with Singapore (which provides many SOFA-type provisions for Australian forces in Singapore), a reciprocal SOFA with Malaysia and a SOFA with New Zealand.

Status of Forces Agreement with Malaysia
Status of Forces Agreement with New Zealand
Status of Forces Agreement with Papua New Guinea
Status of Forces Agreement with Singapore
Status of Forces Agreement with the United States of America
Five Power Defence Arrangement - Singapore
Five Power Defence Arrangement - Malaysia

International Logistics Agreements
International Logistics Support Agreements establish general principles for the provision or receipt of logistics support between Australia and other countries. The agreements outline the scope of support available and the terms and conditions under which support can be provided or received. The Agreements are normally activated through the use of a subsidiary Implementing Arrangement, which documents detailed arrangements specific to an activity.

Australia has also entered into a number of International Logistics Support Arrangements (non-treaty status) with a number of nations, which perform a similar function.

Logistic Support Agreement with the United States of America
Logistic Support Agreement with New Zealand