The purpose of the WAMU Securities Agency, or AUT, is to identify the most appropriate ways of mobilizing all of the necessary funding on the regional and international capital markets, based on the needs expressed by the states.

Procedures are suggested to each national treasury department, which has decision-making powers in that regard.

The WAMU Securities Agency (AUT) provides assistance for national treasury departments in areas such as capacity building, identifying and formulating their needs, and programming and coordinating their interventions on capital markets. The AUT also helps national treasury departments in promoting public securities to national, regional and international investors, and in the operational management of securities issues.