It's the same here in SA. Not allowed to be mounted above the bonnet line and have to be in the centre if only a single bar is used. That means it should be mounted under the bull bar centre loop and not on top. Many people have them mounted on top of the loop as they have regular lights mounted on the bull bar. I don't think the police are enforcing this at the moment but if they get a memo from up top they may start cracking down on it.