(1)  A licence is subject to –

(a) such terms and conditions as are imposed by this Act or prescribed by the regulations; and

(b) such terms and conditions as may be imposed by the Secretary, at the time the licence is granted or renewed or at any later time.

(2)  A term or condition imposed by the Secretary after the licence is granted or renewed takes effect –

(a) when written notice of the term or condition is given to the holder of the licence; or

(b) at such later date as may be specified in the notice.

(3)  The Secretary may at any time, by notice in writing to the holder of a licence, vary or revoke a term or condition imposed by the Secretary.