Australian Certificate of Identity

The Australian Certificate of Identity (COI) is a biometric travel document issued by the Department of Foreign Affairs and Trade to individuals who are not Australian citizens and are about to leave Australia or one of its territories.
It should not be confused with the Document of Identity, which conversely is intended mainly for use by Australian citizens in circumstances where it would be unnecessary or undesirable to issue a passport.
Eligibility.
A person in one of the following can apply for a COI:
Use.
Holders of a COI who are refugees or stateless persons and legally resident in Australia can enter Germany, Hungary and Slovenia visa-free.<ref name="539/2001notifications">Information pursuant to Council Regulation (EC) No 539/2001 of 15 March 2001 listing the third countries whose nationals must be in possession of visas when crossing the external borders and those whose nationals are exempt from that requirement</ref> Holders of a COI who are refugees (but not stateless persons) legally resident in Australia can enter Slovakia visa-free. The maximum length of stay under these visa exemptions is 90 days in a 180-day period.