An improvement notice may provide for the operation of the notice to be suspended until a time, or the occurrence of an event, specified in the notice.
The time so specified may, in particular, be the time when a person of a particular description begins, or ceases, to occupy any premises.
The event so specified may, in particular, be a notified breach of an undertaking accepted by the local housing authority for the purposes of this section from the person on whom the notice is served.
In subsection (3) a "notified breach", in relation to such an undertaking, means an act or omission by the person on whom the notice is served—
which the local housing authority consider to be a breach of the undertaking, and
which is notified to that person in accordance with the terms of the undertaking.
If an improvement notice does provide for the operation of the notice to be suspended under this section—
any periods specified in the notice under section 13 are to be fixed by reference to the day when the suspension ends, and
in subsection (3) of that section the reference to the 28th day after that on which the notice is served is to be read as referring to the 21st day after that on which the suspension ends.