The following provisions apply where a drought order contains a provision authorising a water undertaker to prohibit or limit the use of water, that is to say—
The Secretary of State may revoke or vary any direction given by him for the purposes of section 74(2)(b) above by a further direction for those purposes.
Where any purpose set out in a direction given for the purposes of section 74(2)(b) above will cease, by virtue of the variation or revocation of the direction, to be one which may be specified in an ordinary drought order, the Secretary of State shall (without an application having been made to him) exercise his power to vary or revoke ordinary drought orders, in so far as any orders in force will be affected by the variation or revocation of the direction, so as to make those orders conform to the variation or reflect the revocation.
The revocation or variation of a direction under subsection (3) above shall not affect either—