What is VSB1?

VSB1 (Vehicle Standards Bulletin 1 Rev 5, June 2009) is a National Code of Practice for Building Small Trailers. That is, trailers with an Aggregate Trailer Mass (ATM) of less than 4.5 Tonnes. This Vehicle Standards Bulletin summarises the construction requirements for trailers necessary to meet the ADRs (Australian Design Rules), and trailers built to meet the requirements in this bulletin are accepted as meeting the ADRs.

You can download a copy of VSB1 here.