Interesting -
http://www.austlii.edu.au/au/legis/n....html#low-beam
It says
"low-beam", for a headlight or front fog light fitted to a vehicle, means that the light is built or adjusted so, when the vehicle is standing on level ground, the top of the main beam of light projected is:
(a) not higher than the centre of the headlight or fog light, when measured 8 metres in front of the vehicle; and
(b) not over 1 metre higher than the level where the motor vehicle is standing, when measured 25 metres in front of the vehicle.
Also reference
http://www.austlii.edu.au/cgi-bin/si...sr324/s82.html
AUSTRALIAN VEHICLE STANDARDS RULES - REG 82
Effective range of headlights
(1) This rule applies to a headlight that is on at night.
(2) A low-beam headlight must illuminate the road ahead of the vehicle for at least 25 metres.
I realise they are both regulations for NT, but it's a start. Also realise that those regulations don't specify if there is a different reg for HID lights, as they may come under different rules.
I completely just stumbled across that site, may have to teach myself how to use it as there is a lot of pertinent imformation in there we could all use!