City of Sydney Relationships Declaration
Other institutions such as the Registry of Births Deaths and Marriages no longer accepts an Australian Marriage Certificate as a form of ID – this creates an equal situation for both opposite sex and same sex couples as both are not allowed to present their relationship certificates as a form of ID.
Genealogical certificate
Genealogical certificates were documents that reflected the actual descent of a person. For marriages a genealogical certificate was required since only it showed who the biological parents were. Since 2009, a "certified register printout of birth registration" is required upon marriage instead, which also contains information about the birth parents. This differs from the birth certificate, since the birth certificate only includes the legal parents, namely the adoptive parents.