Looking at the amendenet to childcare bill, Wed 5 June, the 1:13 ratio will still apply in some cases:
Where there is registered early years provision, which operates between 8 am and 4 pm, and a member of staff with Qualified Teacher status, Early Years Professional status or other full and relevant level 6 qualification is working directly with the children, for children aged three and over?
(a) the ratio of staff to children must be no less than one to 13; and
(b) at least one member of staff must hold a full and relevant level 3 qualification.
It also applies in a maimtained nursery (so a state nursery). I think that if a school opens a nursery class, then that is a maintained nursery but if a provider opens a nursery/pre-school on a school site but runs independently, then that is not a maintained nursery.