(1) If:
(a) the advice states that the operation of the device is authorised under the class licence; and
(b) the device is operated only in accordance with the advice;
neither the ACMA nor any other authority of the Commonwealth may take any action against the person to whom the advice was given, during the period of 5 years commencing on the day the advice was given, on the basis that operation of the device is not so authorised.
(2) This Division does not imply that operation of a radiocommunications device is not authorised under a class licence unless it is in accordance with advice given under this Division.