In this Part—
"modification", of a heavy vehicle, means—
(a) the addition of a component to, or the removal of a component from, the vehicle; or
(b) a change to the vehicle from the manufacturer's specification for the vehicle;
but does not include a modification to the vehicle that has been approved under the Road Vehicle Standards Act 2018
, item 16(2) of Schedule 3 to the Road Vehicle Standards (Consequential and Transitional Provisions) Act 2018
of the Commonwealth or the Motor Vehicle Standards Act 1989
before the repeal of that Act.