Section 1 of this Act shall not require the making of an instrument of government for any aided or special agreement school in respect of which there is in force, at the time when that section comes into force, and continues in force, an instrument under which its governing body is constituted; but this paragraph shall cease to apply to any such school if it is grouped with another school under section 9 of this Act.

Any such instrument shall, after the commencement of section 1, be treated for the purposes of this Act as having been made by order under that section.