Any power to make orders or regulations conferred on the appropriate Minister or Ministers by or by virtue of this Act shall be exercisable by statutory instrument.

Any power to make an order conferred by or by virtue of any provision of this Act shall include power to make an order varying or revoking any order previously made under or by virtue of that provision.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F2