California Radar Detector Laws: Detectors, Jammers and Mounting

The California Vehicle Code provisions checked for this guide prohibit devices that jam or interfere with speed-measuring equipment; they do not state a general ban on passive radar detectors. Check current state and federal rules for your vehicle and circumstances.

No. California Vehicle Code section 28150 prohibits equipping a vehicle with, or possessing, a device designed to jam or interfere with speed-measuring equipment, subject to the statute?s stated exception.

California Vehicle Code section 26708 restricts objects attached to or placed on windshields, with listed exceptions. Review the current statute and choose a placement that does not obstruct the driver?s view.

Federal rules can apply to commercial motor vehicles even when state rules differ. Check the current federal regulation and your employer?s policy before using a detector in a commercial vehicle.