(1) For the purposes of this Subdivision, the ACMA is to enter a media group in the Register by entering in the Register, under a heading for the group:
(a) the names of the media operations in the group; and
(b) the name of the controller, or the names of each of the controllers, of the media operations in the group.
(2) A media group is to be identified in the Register by a unique number assigned by the ACMA.