3(1)In subsection (3) of the principal section the reference to the Secretary of State and the appropriate Minister—
(a)in relation to statutory undertakers who are also statutory undertakers for the purposes of any provision of Part XI of the [1971 c. 78] Town and Country Planning Act 1971, shall be construed as if contained in that Part; and
(b)in relation to any other statutory undertakers shall be construed in accordance with an order made by the Secretary of State.
(2)If, for the purposes of subsection (3) of the principal section, any question arises to which Minister is the appropriate Minister in relation to any statutory undertakers, that question shall be determined by the Treasury.