43.—(1) The Mayor may enter into arrangements jointly with the Combined Authority, the constituent councils and other councils in accordance with section 101(5) of the 1972 Act for the discharge of the general functions of the Combined Authority which are exercisable only by the Mayor pursuant to article 42(1).
(2) In this article “other council” means the council for a county or district in England, or another combined authority.
By virtue of section 101(1) of the 1972 Act, and subject to sections 101(1A) to (1E) and (10) of that Act or other express provision made by the 1972 Act or any subsequent Act, the Combined Authority may arrange for the discharge of any of its functions by a committee, a sub-committee or an officer of the Combined Authority, whilst further to section 101(5) of the 1972 Act, the Combined Authority may enter into joint arrangements with other local authorities in relation to the discharge of any of its functions. “Local authority” includes a combined authority (section 101(13)).