I don't know that there are 'laws' which govern neonatal intervention? The guidelines for neonatologists are usually 24 weeks or 500gm but I thought they were best practice guidelines and decisions from hospital ethics boards rather than law?
Irrespective of intervention, births after 20 weeks are supposed to be registered and issued with a birth certificate, but they are not if they are the by-product of an abortion. So now the baby only 'exists' as a person if it was wanted by the parents?
It also doesn't really matter to me if there was only one proven to be after 26 weeks, that's one too many in my world.