(1)  A council, by a resolution of an absolute majority, may resolve to establish –

(a) a single authority; or

(b) a joint authority with one or more other councils.

(2)  A single authority or joint authority may be established –

(a) to carry out any scheme, work or undertaking; and

(b) to provide facilities or services; and

(c) to perform any function or exercise any power of a council under this or any other Act.

(3)  .  .  .  .  .  .  .  .