The Secretary of State may by order approve any code of practice issued (whether by him or by another person) for the purpose of—
and may at any time by such an order approve a modification of such a code or withdraw his approval of such a code or modification.
A contravention of a code of practice as for the time being approved under this section shall not of itself constitute a contravention of any requirement imposed by section 3 or 4 above or give rise to any criminal or civil liability; but the Secretary of State . . . shall . . . be under a duty to take into account whether there has been or is likely to be any such contravention in determining when and how he should exercise his powers in relation to any relevant undertaker by virtue of this Act, any of the other consolidation Acts or the Water Act 1989.
The power of the Secretary of State to make an order under this section shall be exercisable by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament.
The Secretary of State shall not make an order under this section unless he has first consulted—
In this section "the other consolidation Acts" means the Water Resources Act 1991, ... the Land Drainage Act 1991 and the Water Consolidation (Consequential Provisions) Act 1991.