21Variation of a licence

21 Variation of a licence (1) The Authority may vary the conditions or restrictions in a licence by addition, deletion or amendment. (2) The Authority cannot under subsection (1) vary the period for which the licence is in force. (3) A licence may be varied on the Authority's own initiative or at the licensee's request. (4) The Authority must not, on its own initiative vary a licence so as to impose conditions or restrictions less favourable than those in the original licence unless— (a) it considers that there are grounds for suspending or cancelling a licence; and (b) it considers that variation of the licence, rather than suspension or cancellation, is appropriate in the circumstances; and (c) it has given the licensee written notice of its intention to vary the licence; and (d) it has given the licensee reasonable opportunity to make written submissions to it on the matter. (5) The variation of a licence does not take effect until the Authority gives written notice of the variation to the licensee. (6) If asked to do so by the Authority, the licensee must produce the licence to the Authority so that the variations can be noted on it.