The Commonwealth of Virginia and Washington D.C.
Added: From personal experience I know that the above answer is true - HOWEVER - there are probably several others, but we're not going to conduct a search of the the DMV regulations of the other 48 states. Ask about a specirifc one an we'll try to assist you.
Radar detectors are legal to use for all non-commercial vehicles in 49 states. Washington, DC and Virginia are the only two states that radar detectors are banned in the United States. Radar detectors used in commercial vehicles are illegal.
Virginia & Washington dc. Military bases.
no
Minnesota Radar and Laser Jammer laws Radar laser detectors are legal to own and operate in passenger vehicles in the state of Minnesota. Currently the only state that it is illegal to operate a radar detector is Virginia and Washington D.C. Laser jammers are illegal to operate in the states of: Nebraska, Minnesota, Utah, California, Oklahoma, Virginia, Colorado and Washington DC. Radar jammers are illegal to own and/or operate in all 50 states per the Federal Communications Commission. Radar detectors are also illegal in commercial vehicles weighing over 10,000 pounds in all fifty states, per Title 49 Transportation Act. Radar detectors are also illegal to operate on any military base.
Radar detectors are legal to use in Nevada, but as you stated they are illegal to sell.
Refer to the government that made radar detectors illegal .
Radar Detectors in Oklahoma: Radar detectors are legal to use in Oklahoma.Laser Jammers in Oklahoma: Laser jammers are illegal to use in Oklahoma.Courtesy of: http://www.1stradardetectors.com/radar-detector-laws.php
Yes they are the are aloud in PA.
Radar detectors are legal for passenger vehicles in North Carolina. However, they are prohibited for use in commercial vehicles. It is important to note that while radar detectors are legal, the use of radar jammers is illegal in North Carolina and throughout the United States. Radar detectors are devices that can detect radar signals emitted by police radar guns, while radar jammers are devices designed to interfere with or block radar signals.
Radar detectors are legal in the USA except in Virginia, Washington DC and on all military bases. Radar Jammers are illegal in Nebraska, Minnesota, Utah, California, Oklahoma, Virginia, Colorado, Illinois and Washington DC.
Are you talking about radar detectors? If so, they are illegal in many jurisdictions and WikiAnswers does not give information about illegal activities such as using radar detectors. If you are not talking about radar detectors, the please restate the question, giving more specifics about what kind of circuit you are talking about.
Yes, radar detectors are legal in Indiana for passenger vehicles. However, they are prohibited for use in commercial vehicles. It's important to note that radar detectors are legal for passenger vehicles, but using them to evade law enforcement is illegal.