Commonwealth Consolidated Regulations Commonwealth Consolidated RegulationsThe holder of a flight engineer licence is authorised to exercise the privileges of the licence only if the holder also holds:
(a) a class 1 or 2 medical certificate; or
(b) a medical exemption for the exercise of the privileges of the licence.
Note: A licence holder must not exercise the privileges of his or her licence and rating during any period of temporary medical unfitness that could render the holder unable to exercise those privileges safely: see regulation 67.270.