Is there actually a school policy?
Or is it up to the head teacher?
My wife and daughter both work in different schools and they are being told different things.
My wife works in an independent school and its staying open on the say so of the head teacher who is taking advice from local education authority who in turn I guess are getting their information from official government sources. With mocks going on/coming up, her plan is to stay open as long as permitted and let the children do those and business as usual for the other kids