(1)It shall be the duty of the Corporation to revoke any stop notice relating to any damage to any property if—
(a)at any time, it no longer appears to the Corporation to be probable that further damage will occur to that property within the period of eighteen months beginning with that time; or
(b)at any time after the end of the period of three years beginning with the relevant date, the claimant and any other person interested request the Corporation to revoke it.
(2)Where a stop notice has been given with respect to any damage, it shall be the duty of the Corporation to consider, initially not later than twelve months after the date on which the notice was given and subsequently at intervals not exceeding twelve months, whether to revoke it.
(3)Where a stop notice given to any person with respect to any damage is revoked—
(a)a fresh notice of proposed remedial action relating to the damage (or so much of it as has not been made good by any emergency works or any excepted works within the meaning of section 16 above) shall be given by the Corporation to that person as soon as reasonably practicable after the date of the revocation;
(b)any such notice of proposed remedial action which is effective immediately before that date shall cease to have effect on the giving of a fresh notice in accordance with paragraph (a) above; and
(c)any schedule of remedial works relating to the damage which is effective immediately before that date shall cease to have effect when the schedule of remedial works sent under section 6(1) above in connection with the fresh notice of proposed remedial action comes into effect.
(4)In subsection (1)(b) above “the relevant date”, in relation to a stop notice, means—
(a)the date on which the stop notice was given; or
(b)where one or more previous stop notices had been given in respect of the whole or any part of the damage, the date on which that notice or, as the case may be, the first of those notices was given.
(5)The Secretary of State may by order substitute for the period mentioned in subsection (1)(b) above (whether as originally enacted or as previously amended under this subsection) such other period as he thinks fit.
(6)On any occasion when in pursuance of subsection (2) above the Corporation consider whether to revoke a stop notice they shall give notice of their decision to the person to whom the stop notice was given as soon as they have made it.