The following information bulletins set out the requirements to operate 14.6 metre (48') trailers and 4.6 m high vans in Victoria.
48' Trailers [PDF, 300 KB, 2 pp]
Details of semi-trailer dimensional limits are also described in Division 2 of Part 4 to the Road Safety (Vehicles) Regulations 1999.
4.6 m High Vans [PDF, 525 KB, 4 pp]
The operating requirements for 4.6 metre high vans are also described in Part 3 of Schedule 3 to the Road Safety (Vehicles) Regulations 1999.