just looking up info on allowed modifications and came across this if anyones interested...
Do I need an engineering signatory for minor modifications?
Vehicle modifications fall into three distinct categories:
• “Owner certified” minor modifications which can be accepted for registration purposes without
formal certification;
• “Engineering signatory certified” modified production vehicles; and
• “Engineering signatory certified” individually constructed vehicles.
Owner certified minor modifications are generally those modifications which were optional equipment
for the vehicle concerned. Owner certified modifications also include some non-standard modifications
of a minor nature which do not affect the level of safety, strength or reliability of vital systems such as
brakes and steering. These modifications have little or no impact upon the vehicle’s level of compliance
with the Australian Design Rules.
Examples of minor (owner certified) modifications are: • engine changes where the capacity increase is less than 15% above the maximum size engine
available for the vehicle (providing no major structural modifications are necessary and where
noise and/or exhaust emission ADRs apply, all standard equipment such as carburettors, exhaust
systems, exhaust gas recirculating valves, oxygen sensors and catalytic convertors relating to
noise and emission control are retained and operate correctly);
• the fitting of a proprietary sunroof (if the modifications are of a minor nature only);
• fitting a “package” available as optional equipment for the vehicle (eg front disc brakes, power
steering, alternative transmission and bucket or bench seats);
• additional lighting eg: fog & driving lights;
• alternative wheels and tyres within the owner certified limits set by the Authority (see Vehicle
Standards Information Sheet No. 9 Guidelines for Alternative Wheels & Tyres);
• fitting of handling enhancing suspension components such as roll stabiliser bars and up-rated
shock absorbers.
Sun, 06 March 2005 07:46
