(1) For the Australian Road Rules and these regulations, the road transport authority may—
(a) approve a protective helmet for bicycle riders as an approved bicycle helmet; or
(b) approve a child restraint as an approved child restraint; or
(c) approve a protective helmet for motorbike riders as an approved motorbike helmet; or
(d) approve a canopy, cage or other device fitted to a vehicle; or
(e) declare a person to be an emergency worker.
(2) An approval or declaration under subregulation (1) is a disallowable instrument for the Subordinate Laws Act 1989 .