Did you read fujis link?
yes I did read it and spend part of my working days reading, reviewing or amending policy type documents [ in another field ]and find that any document needs to be read carefully, I copied the relevant part of the posted link document below
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Front fog lights are designed to better illuminate the road in fog, snowfall, rainstorms or dust clouds. They can be recognised by the low, narrow vertical pattern (and wide lateral spread) of light emitted.
Road Rule 217 states that drivers must not use front or rear fog lights unless driving in fog or other hazardous weather conditions that cause reduced visibility. They must be switched on separate from the main beam (high beam) and dipped beam (passing) headlights.
Fog lights should only be used in hazardous weather conditions. Drivers should familiarise themselves with the dashboard warning symbols so that they do not inadvertently switch these lights on.
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As stated above the fog lights must be switched separate to the main beam ,which is how they are done on the 5 cars that reside in my drive ,2 mazdas ,1 Suzuki,1 Toyota and a ford. These cars all left the factory with factory fitted fogs and all can be turned on inconjunction with any other light beam but also can be used with out the main headlights on [which I originally incorrectly said was not possible]. The above ADR 217 only says that need to be switched separately from the main beams, however it does not say that the fogs need to function separately from the main beam or cannot be used in conjunction to the main lights. Which is how vehicle manufacturers fit the fog lights in compliance to the ADR. If it was to infer that the fogs could only work or be used without the main lights then this would have been included in the prescriptive text and you would also find then that the cars would function that way ex factory. Yet it only says that they should be used in hazardous conditions [which is where a previous post was pointing out that the "bogan" don't follow this rule and drive round on the sunniest of days with the fogs on]. Yet the ADR are then quite specific with high beam driving lights in that they should only function in conjunction with the high beam [or main beam as it is reference]
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Driving lights are designed to illuminate the road over a long distance for example country areas. They must be wired such that they only switch on with the main beam (high beam) head light. They emit the same lighting pattern as a main beam and are used as a supplementary light.
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regards Rags