The law has been updated several times, in 1986, 1988, 1993, 1994, 1997,1998, 20.
Birth in Austria does not in itself confer Austrian citizenship.
Suffrage (election of the Imperial Council) for all male citizens with Heimatrecht was introduced in 1906.
From 1863, municipalities were obliged to keep a record (Heimatrolle) of all citizens.
However it may lead to a reduction in the residence requirement for naturalisation as an Austrian citizen.
Foundlings under the age of 6 months are legally presumed to have Austrian citizenship.
Nationality law (German: Staatsbürgerschaftsgesetz) in the Republic of Austria is based on the principle of jus sanguinis.
In other words, one usually acquires Austrian citizenship if a parent is Austrian, irrespective of place of birth.
Minor children of a person granted Austrian citizenship are most often granted Austrian citizenship as well.
A father passes on citizenship if he acknowledges paternity or a court does so within eight weeks of the birth.
Should the parents marry at some time after the birth, citizenship is automatically granted to the child retroactively.
For children born prior to that date, the father must have been an Austrian citizen: children born to an Austrian mother married to a non-Austrian father do not qualify.
If the parents are not married, a mother automatically passes on Austrian citizenship.
A child born to two Austrian parents is an Austrian citizen, regardless of the parents' marital status.