I'm writing this for single, pregnant women, who are wondering what to put on the birth registration forms when the father wants no involvement. Pay attention, as it's a bit complex.
I have been going through the new laws here in Victoria concerning registering births as a single parent.
Births, Deaths and Marriages has now taken over the registration of donor conceptions. What this means is that home donor conceived babies, [ie turkey basting with a known donor to intentionally make a baby], can be registered as having a donor, not a father. In this case the certificate is issued without a father's name, but his name is held on the donor registry, and can be accessed when the child is 18.
In practice, what this means is that if you write a letter to BDM and state that your baby was donor conceived at home, and the donor also writes a letter stating that your baby was donor conceived at home. He then won't have parental responsibility, but his name will be recorded on the donor registry.
The law differentiates between 'intended parents' and donors. So in this case there would be no need to lie about the identity of the father to obtain a blank certificate, and his name would be available to the child, but he would have no parental responsibility and not be liable for child support.
There is some lack of clarity in what happens if a donor decides to change his mind, [there are cases where donors have been awarded some access to the child]. But stating that a donor never intended to be a parent at birth is legally safer for the mother, than if she were to lie about the father's identity and he changes his mind later on.
So if it's possible to negotiate with an absent father before registering the birth, when neither of you want involvement and you don't want child support, then this may be something worth considering. It's a creative retrospective interpretation of the law, but means that children have their two biological parents registered and both adults have clear roles as parent and donor.
Clear as mud? See Rainbow Families for more details.