enable the governing bodies of two or more maintained schools F1in England to arrange for any of their functions to be discharged jointly or by a joint committee of theirs,

provide for the appointment by two or more governing bodies of a joint committee of those governing bodies for the purposes of discharging any functions in pursuance of any such arrangements, and

provide that any enactment relating to those functions or the governing bodies by whom they are to be discharged is to have effect subject to all necessary modifications in its application in relation to those functions and the governing bodies by whom they are to be discharged.