Is a Radar Detector Legal in Ohio? Current Rules Explained

The Ohio Revised Code provisions reviewed here do not state a blanket passenger-car prohibition on radar detectors. Check current state and federal requirements for your specific vehicle and use, especially if it is commercial.

Commercial motor carriers may be subject to federal restrictions on radar-detection devices. Review 49 CFR § 392.71 and confirm how the rule applies to the vehicle and operation in question.

Ohio Revised Code § 4511.091 addresses speed measurement and enforcement, including radar and other timing devices. Read the current statute for the enforcement provisions; that is a separate issue from a driver possessing a detector.

Mounting rules can depend on obstruction and vehicle-safety requirements. Check Ohio law and your vehicle manual, and keep the device out of the driver’s required field of view.