People face a maximum £6,400 fine for mixing indoors, but council bosses say more detail is needed.
Boris Johnson apologises after failing to clarify the detail of new tighter coronavirus restrictions.
Face-to-face lessons could end early so students have time to isolate ahead of Christmas break.
Officials in England say there will be enough stock to protect the vulnerable, but some will have to wait.
Boris Johnson said funding changes are required to help people find jobs in the post-Covid economy.