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Colorado Radar Detector Laws: Detectors, Jammers and Drivers

Colorado’s cited statute prohibits radar jamming devices; check current law and federal commercial-vehicle rules separately.

Colorado radar detector laws are often confused with the rules for radar jammers. The Colorado statute cited here prohibits use, possession or sale of a radar jamming device and operating a vehicle with one installed. That provision defines jammers as equipment intended to interfere with, disrupt or scramble enforcement radar or laser. It does not describe an ordinary receive-only detector as a jammer.

Colorado Radar Detector Laws: Detectors, Jammers and Drivers

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Questions before you buy

Are radar detectors legal in Colorado?

The cited Colorado provision specifically prohibits radar jamming devices. It does not state a general ban on ordinary receive-only detectors; verify current law for your situation.

Are radar jammers legal in Colorado?

No. Colorado Revised Statutes section 42-4-1415 prohibits using, possessing or selling a radar jamming device and operating a vehicle with one.

Can commercial drivers use radar detectors in Colorado?

Federal regulation 49 CFR 392.71 prohibits a driver from using a radar detector in, or operating, a commercial motor vehicle containing one.

Does a radar detector interfere with police radar?

A receive-only detector listens for signals. A jammer is designed to interfere with signals and is treated separately by the cited Colorado statute.