Trivia: In which states are radar detectors illegal?
Vermont & New Hampshire
Illinois & Wyoming
Virginia & Iowa
Louisiana & Florida
The correct answer is Virginia & Iowa
So why is this answer correct? : Radar detectors — which warn drivers of police cars and potential speed traps — are legal in every state except Virginia and Iowa. (They are also illegal in Washington, D.C.) In Virginia, if a driver is caught with a radar detector in use, they could face a fine of up to $250. Radar detectors are also illegal in commercial vehicles that weigh more than 10,000 pounds, regardless of which state you’re driving in. Radar detectors are allowed in commercial vehicles under 10,000 pounds in all states except Illinois, Iowa, Minnesota, New Jersey, New York, and Virginia.