7Meaning of broken down

7 Meaning of broken down A road vehicle is broken down if: (a) for a vehicle other than a trailer – it is not possible to drive the vehicle because it is disabled through damage, mechanical failure, lack of fuel or any similar reason; and (b) for a trailer – it is not connected (either directly or by one or more other trailers) to a towing vehicle, whether or not the trailer is also disabled through damage, mechanical failure or any similar reason.

Transport of Dangerous Goods by Road and Rail (National Uniform Legislation) Act 2010 10