How camera enforcement works, where it is legal, and what the thresholds really are.
The 10% + 2 mph threshold is real, it is confirmed in police disclosures, and it is not a legal entitlement. Here is what the guidance says, who sets it, and why it can change without notice.
Nineteen states and DC permit automated speed enforcement, ten prohibit it outright, and twenty-one have no law at all. What that patchwork means for a driver crossing state lines.
Average speed cameras use ANPR to time vehicles between two points, calculating speed over a distance to deter continuous speeding.
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