This was interesting:
Can I wear a camera or bluetooth unit on my helmet?
Neither AS1698 nor UNECE 22.05 have been updated to specify accessory attachment methods. It is not legal to modify a helmet shell to fit an attachment such as drilling holes. but if it is clamped or stuck on with the provided attachments, it should be ok. The position in Victoria is still in doubt.
NSW and Victorian police improperly interpreted the AS1698 specification to determine accessories were illegal on the basis they were rigid external projections protruding more than 5mm beyond the helmet shell. NSW police have been instructed by the Police Commissioner to stop issuing infringement notices for accessories.
A recent helmet camera fine was dismissed in Victoria, but only on the grounds that the laws were too difficult for the public to access, not on the applicable laws. If the Victorian laws become more readily available, there could be concerns for riders in Victoria. Some NSW and Victorian police may still improperly interpret any change to a helmet as making it non-compliant. The argument that compliance only applies at the point of sale has still not been proved.
The ACT government has ratified the legality of helmet cameras and Bluetooth units, while States such as Queensland and Western Australia do not see it as an issue. Meanwhile, bike cops in all states have cameras and Bluetooth units attached to their helmets.Not 100% relevant to this post but it goes to show how fked up Oz helmet laws are.
And, somewhat more relevant:
9 Are tinted visors and goggles legal?
AS1698 and UNECE 22.05 specify limits on visible light transmittance (VLT) for tinted visors, neither specification has been updated to cover modern optical treatments or internal visors. AS1698 allowable tinting is 50-85% VLT, UNECE 22.05 allowable tinting is 50-80% VLT. Victorian police withdrew a non-compliant helmet fine against a rider for having a tinted visor. However, because it didn’t go to court for a decision, there is no test case and no reason why police can’t continue to interpret the law that way. The ACT is the only government that has specifically ratified internal tinted visors. There have been very few examples of riders being fined, but it makes sense not to wear a tinted visor at night. Meanwhile, the legality of replacement tinted visors is still open to interpretation. Goggles are legal on helmets which are designed for use with goggles. If they are not tinted, there is no problem with helmet goggles.