Supplementary schools are not classified as ‘schools’ by government/Ofsted and cannot be registered as such or inspected as such. Furthermore, they are exempt from registering with Ofsted as childcare providers so long as they don’t have children under 3 years, and any 3-5 year olds are not attending more than four hours per day. They can apply to join the voluntary part of the Childcare Register at a cost and must be renewed annually.