Yeh my bad, it is for illegal modifications only, you can get done three times for three different modifications should police wish and it will still fall under the same category.
If your car is modified and features the appropriate modification plate and paperwork by an authorised person there shouldnt be any problems. I have always kept my paperwork in the car.
Keep in mind there has always been a big divide between what Qld Transport classify as street legal and what police do.
Police generally will target ;
Exhaust noise, unfastened pod filters, smaller than standard steering wheels, ride height, wheel and tyre sizes, chopped chassis rails, chopped front reo bars, BOV's etc.
Cheers
Imtorqing