Modified Vehicles
Modifications to vehicles fall into two broad categories:
Those covered by guidelines published in VicRoads
Vehicle Standards Information sheets; and
Those which require individual approval and thus an
approval certificate from a VASS.
This makes it difficult to determine whether the
modification has been approved in the context of a
roadworthiness inspection.
In these circumstances an examination should be
confined to checking that the modification appears
to be properly executed and not in a condition which
presents a hazard.
See VSI 8 for more information on modified vehicles.

Identification (Compliance) Plates/
Vass Approval Certificates
Identifiction plates were required on vehicles
manufactured after June 1988 as evidence that, at the
time of first registration, the vehicle complied with the
applicable ADRs. However, identification plates are often
damaged, lost or stolen during the life of the vehicle.
Therefore, the presence of an identification (compliance)
plate is not a mandatory requirement for the issue of a
Certificate of Roadworthiness.
Similarly VASS approval certificates are generally supplied
as evidence at the time of registration or change of
description that the vehicle complies with the applicable
standards for registration.
A VASS approval certificate should only be requested by
a Licensed Vehicle Tester, when a vehicle modification,
which affects handling, structural integrity or compliance
with the standards for registration, does not appear to
comply with good industry practices.