sorry but I will claim that I did not start this your hounour.
Ok, just to add to the conspicuity lights debate:
Not sure how current this is however here goes;
Vehicle Standard (Australian Design Rule 19/01 – Installation of Lighting and Light-Signalling Devices on L-Group Vehicles) 2007
1. SCOPE
This vehicle standard prescribes requirements for the number and mode of installation of lighting and light-signalling devices on L-group vehicles.
2. APPLICABILITY AND IMPLEMENTATION
2.1. This vehicle standard applies to the design and construction of vehicles as set out in the table below.
2.2. These vehicles must have their lighting and light-signalling devices installed to comply with the relevant requirements of this vehicle standard or with an acceptable prior rule as set out hereunder.
2.3. Where the fitment of a lamp is indicated as optional, this means that it is not mandatory to fit the lamp but, if fitted, the lamp(s) are required to comply.
2.4. Vehicles certified to any of the “Acceptable Prior Rules”, as shown below in the applicability table for a particular vehicle category, are deemed to comply with this rule.
2.5. Vehicles certified to ADR 67/... need not comply with this rule.
Applicability Table (there are a number of other vehicles listed in the ADR should you wish to research it)
Motor cycle LC L3 1 Jan 1997
8.9. CONSPICUITY LAMPS
8.9.1. Number Two to ADR 45/...
8.9.2. Arrangement No special requirement.
8.9.3. Position
8.9.3.1. In width: they shall be positioned equidistant from the median longitudinal plane of the vehicle.
8.9.3.2. In height: not less than 250 mm and not more than 1,200 mm above the ground.
8.9.3.3. In length: at the front of the vehicle. This requirement shall be deemed to be satisfied if the light emitted can not be seen by the driver either directly or indirectly through the rear vision mirror and/or other reflecting surfaces of the vehicle.
8.9.4. Geometric visibility Horizontal angle: from 80° inwards to 80° outwards. Vertical angle: 15° above and below the horizontal.
8.9.5. Orientation Forward. The lamps may move with the steering.
8.9.6. May be “grouped” with other front lamps.
8.9.7. May be “combined” with any other front lamps.
8.9.8. May be “reciprocally incorporated” with other front lamps other than direction indicator lamps.
8.9.9. Electrical Connections
8.9.9.1. The conspicuity lamps shall be lighted each time the engine is started but may be extinguished whenever a passing lamp or driving lamp to Appendix A of this rule is lighted.
8.9.9.2. The conspicuity lamps need not be lighted whenever the engine is not operating or when the device which controls the starting and stopping of the engine is in the off position.
8.9.10. Tell-tale No requirement.
8.9.11. Alternative requirements A single or twin passing lamp(s) to paragraph 6.2. of Appendix A shall be deemed to meet the requirements for conspicuity lamps provided that the passing lamp(s) meets the requirements of Clause 8.9.9.
8.9.12. Other Requirements None.
The defence rests you honour