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The cops would need a calibrated tool to test headlight emissions. The manufacturer would have to be able to provide a theory of operation and other documentati
by jschwartzi 7y ago
The cops would need a calibrated tool to test headlight emissions. The manufacturer would have to be able to provide a theory of operation and other documentation, and be able to support cops who have to testify in court over the fines.
This is all possible, and actually I would love to build something like this for the police so that I can stop people from blinding me while I'm driving.
- mindslight 7y agoYou're drastically overstating the effort to get a lot of low hanging fruit - colored headlights can be done visually, as there are no headlights that meet DOT requirements that are purple or yellow. There are very few properly certified aftermarket headlights to begin with. And many non-approved aftermarket ones will simply omit any DOT self-certification mark, another slam-dunk.
- jschwartzi 7y agoYeah, you're probably right given how easy it is for cops to justify any stop at all.
- u801e 7y ago> there are no headlights that meet DOT requirements that are purple or yellow. FMVSS 108 doesn't directly define a permissible color for headlamps. It references some SAE documents that define it, but you have to pay money in order to access them. Headlamps can have a range of permissible color output (e.g., halogen vs HID vs LED), and, apparently, bulb manufacturers like Sylvania manufacture halogen bulbs with a blue filter that apparently complies with FMVSS 108 even though they have a bluish color.