A multi-academy trust (MAT) is a single trust with 1 board of governors (corporate Governing Body) that is accountable for a number of academies in its chain.
Each academy usually has a local governing body to which the trust s board of governors delegate specific functions. Alternatively, each academy can have an advisory body that has no delegated functions but advises the trust s board of governors on matters agreed at a local level.
Further guidance can be found on the GOV.UK website.