The Department for Education monitors the performance of all academies, including those that are part of Multi Academy Trusts such as AET and Oasis. Performance data for all AET and Oasis academies are published in the Department's performance tables, which can be found at
Where academies are seriously underperforming of not making sufficient progress, the Department will intervene by issuing a Pre-Warning Notice (PWN) and require that the Academy Trust provides an improvement action plan. All PWNs are published on the gov.uk.website. Where improvements are not being made quickly enough, Academy Trusts are prevented from taking on additional academies or alternative sponsors will be found.