19Revocation of permit or authority

#### 19 Revocation of permit or authority (1) Subject to subsection 22(1), the Minister may, in writing, revoke a permit or authority if the holder of the permit or authority: (a) contravenes a condition, or fails to observe a restriction, subject to which the permit or authority is granted; (b) contravenes a direction given or an order made under section 73; or (c) is convicted of an offence against this Act. (2) Subsection (1) extends to a contravention or failure that occurs outside Australia. (3) The Minister shall revoke a permit or authority if the person to whom the permit or authority was granted requests the Minister, in writing, to do so. (4) The revocation of a permit or authority under this section takes effect: (a) in a case where the permit or authority is revoked under subsection (1)—on the day on which notice of the revocation is given to the holder of the permit or authority under subsection 22(1) or such later day as is specified in the instrument of revocation; or (b) in a case where the permit or authority is revoked under subsection (3)—on the day on which the instrument of revocation is executed or such later day as is specified in that instrument.