s 109B Cancellation or variation of restriction notices
Where a restriction notice is in force and the authorised person is no longer satisfied that the conditions in section 109A(2) are met— (a) as regards the premises as a whole, the authorised person must issue a notice cancelling the restriction notice (a “cancellation notice”); (b) as regards a particular part of the premises, the authorised person must issue a notice varying the restriction notice so that it does not apply to that part of the premises (a “variation notice”).