7. Power to appoint joint committees---(1) Subject to this section,
 any territorial authority may unite with one or more other territorial
 authorities in appointing a joint standing or joint special committee
 under section 114S of the Local Government Act 1974 for the purposes of
 this Act.

   (2) No territorial authority shall unite under section 114S of the
 Local Government Act 1974 for the purposes of this Act with any local
 authority or public body that is not a territorial authority.

   (3) Except as otherwise expressly provided in this Act, where any
 territorial authorities unite under section 114S of the Local Government
 Act 1974 for the purposes of this Act,---
   (a) The joint standing or special committee constituted under that
         section shall, for the purposes of this Act, be deemed to be a
         territorial authority and shall have all the functions, duties,
         and powers conferred on a territorial authority by this Act; and

   (b) The districts of each of the territorial authorities that so unite
         shall, for the purposes of this Act, be deemed to be the
         district of that territorial authority; and
   (c) Except as provided in this section, the territorial authorities
         that so unite shall not perform any function or exercise any
         power under this Act.

   (4) Where any territorial authorities unite under section 114S of the
 Local Government Act 1974 for the purposes of this Act, the joint
 standing or joint special committee may delegate to any of the
 territorial authorities that so unite any of the functions, duties, and
 powers conferred upon that joint standing or special committee under
 this Act, other than the functions, duties, and powers conferred on it
 by sections 10, 11, 37, 38, and 39 of this Act.

   (5) Every delegation made under subsection (4) of this section shall
 be revocable at will, and no such delegation shall prevent the exercise
 of any power by the joint standing or special committee.