A federation must—
(a)have a single governing body constituted under a single instrument of government;
(b)in prescribed cases, be treated as a single school for the purposes of such enactments as may be prescribed, other than any enactment contained in Chapter 2 of Part 2 of the School Standards and Framework Act 1998 (establishment, alteration or discontinuance of school) or in Part 3 of that Act (school admissions).