they said it is illegal ONLY if it is a FLOATING type spacer which is not secured between the wheel and the hub! So if it is the type that you can secure it firmly without falling out when you take your wheel off, those are the legal type!
So when you ask around at the road worthy centre, tell them that it is NOT the FLOATING spacer that will fall out when you take your wheel off!
Just want to make that clear! because not all type of spacers are legal!
cheers,
richie