The authorisation of a compulsory purchase shall be conferred by an order (in this Act called a "compulsory purchase order").
A compulsory purchase order authorising a compulsory purchase by an authority other than a Minister is to be—
made by that authority,
submitted to the confirming authority, and
confirmed in accordance with Part 2 of this Act.
A compulsory purchase order authorising a compulsory purchase by a Minister shall be made by the Minister in accordance with Schedule 1 to this Act.