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.
Birth certificate
The actual record of birth is stored with a government agency. That agency will issue certified copies or representations of the original birth record upon request, which can be used to apply for government benefits, such as passports. The certification is signed and/or sealed by the registrar or other custodian of birth records, who is commissioned by the government.