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Radar detector laws by state

Are radar detectors legal in Virginia?

Banned in passenger cars

One of only two U.S. jurisdictions that ban detectors in passenger cars, with a modest fine and an unusual aircraft rule.

By I Go Cars ·

The answer for Virginia drivers

No. Radar detectors are illegal in Virginia in every motor vehicle, including private passenger cars, under Va. Code § 46.2-1079. Virginia and Washington, D.C. are the only two U.S. jurisdictions identified that prohibit detectors in passenger vehicles, which makes the Commonwealth the outlier among the states.

The ban is broad. Section 46.2-1079(A) makes it unlawful to operate a motor vehicle on Virginia highways when it is equipped with any device to detect police radar, laser or other speed-measuring devices, unlawful to use such a device, and unlawful to sell one in Virginia. The same sentence covers equipment that purposefully interferes with or diminishes the measurement capabilities of those devices, so jammers fall under it too. Police vehicles, and sales to law enforcement, are exempt under subsection (C).

For travelers, this is the fact that matters. A detector mounted and powered in a car that is legal in Maryland or North Carolina becomes unlawful the moment that car crosses into Virginia on I-95 or I-81.

Presence is the offense, with one narrow exception

Virginia does not require proof that a detector was switched on. Under § 46.2-1079, the presence of the device in the vehicle is prima facie evidence (enough, standing alone, to prove the point unless rebutted) of a violation, and the Commonwealth need not prove that the device was operating.

Subsection (B) sets out the only defense written into the statute: no violation occurs if the device had no power source and was not readily accessible to the driver or any passenger. Both conditions must be met. An unplugged unit in the glove box or door pocket is still within reach and does not satisfy the second test; a unit packed away out of reach with no power connection may.

Windshield placement, a live issue in most states, is beside the point here. Virginia's obstruction statute, § 46.2-1054, bars objects that substantially obstruct the driver's view and forbids officers from stopping a vehicle for that violation alone, but a detector is unlawful wherever it is mounted.

The fine, the points and the device

Section 46.2-1079 names no fine, so the amount comes from two other provisions. Va. Code § 46.2-113 makes a Title 46.2 violation a traffic infraction punishable by a fine of not more than that provided for a Class 4 misdemeanor, and § 18.2-11(d) sets that ceiling: "For Class 4 misdemeanors, a fine of not more than $250." The result is a traffic infraction with a maximum fine of $250. Court costs added to that fine were not researched for this page.

Subsection (D) adds that no DMV demerit points are assessed for a detector violation, so the offense does not count toward the point totals that drive license suspensions.

As for the device, an officer may take it as evidence. The statute authorizes no forfeiture: the device is to be returned, and only an unclaimed device may be destroyed by court order after six months. The full text is published on the Virginia Legislative Information System.

Jammers and commercial vehicles

Laser and radar jammers are illegal in Virginia under the same section, which reaches any device that purposefully interferes with or diminishes radar or laser speed measurement and bans its sale. The penalty is the same infraction, fine of up to $250 and no points. Radar jammers face a second, federal layer: the Federal Communications Commission prohibits operating or marketing any transmitter that interferes with police radar.

Commercial drivers are covered twice over. The state ban already applies to every motor vehicle, and federal rule 49 CFR 392.71 separately bars drivers of interstate commercial motor vehicles from using a detector or driving a truck equipped with one. No separate Virginia trucking detector statute exists or is needed.

How Virginia police measure speed: § 46.2-882

Virginia's radar-evidence statute is unusually specific about what makes a speed reading admissible. Section 46.2-882 lists the permitted methods: laser speed determination devices, radar, a microcomputer device connected to an odometer cable, and a microcomputer device aboard an airplane or helicopter. Readings from these devices are prima facie evidence of speed.

  • Calibration. When accuracy is questioned, a certificate showing calibration of the speedometer, of the tuning fork used to test radar, or by another method is admissible, but no calibration of a radar, laser or microcomputer device is valid for longer than six months. Photo speed cameras are the exception, at 12 months.
  • Arrests by relay. A uniformed officer displaying a badge may arrest without a warrant after seeing the reading personally or after receiving a radio message, sent immediately, that gives the speed and the vehicle's license number or other positive identification.
  • Who uses what. State Police may use laser, radar and microcomputer devices; all localities may use radar and laser; only specified Northern Virginia localities may use microcomputer devices. Equipment bought on or after July 1, 1986 must meet standards set by the Division of Purchases and Supply.

The scale is considerable. In its 2024 Facts and Figures report, the Virginia State Police listed 1,586 radar units and 776 lidar speed enforcement devices.

The aircraft rule

Virginia law allows speed enforcement from the air but strictly limits how it is done. Section 46.2-882 states that neither State Police nor local officers "shall use laser speed determination devices or radar ... in airplanes or helicopters for the purpose of determining the speed of motor vehicles." The only airborne method permitted is a microcomputer device that measures distance traveled and elapsed time to calculate average speed, and only on highways within the Interstate System.

Two consequences follow. First, aircraft timing involves no transmission toward the car, so even a lawful detector elsewhere would give no warning of it (an inference from how the method works). Second, whether the State Police fly such patrols today is unconfirmed. The Aviation Unit's page describes med-flight, search and rescue and surveillance work with a fleet of helicopters and Cessna 206 airplanes, and its 2024 statistics count 1,680 Med-Flight missions and 2,389 total flight requests, but neither mentions speed enforcement.

Speed cameras under § 46.2-882.1

Virginia authorizes photo speed monitoring by state or local agencies in a defined set of places, and the 2026 General Assembly amended the section heavily:

  • school crossing zones;
  • highway work zones, with no penalty unless workers are present;
  • high-risk segments within 1,000 feet of school property with a marked crosswalk, where a traffic fatality has occurred since January 1, 2014;
  • National Park Service highways in Planning District 8 (Northern Virginia), with NPS authorization;
  • "safety red zones" of 45 mph or less in Northern Virginia priority pedestrian corridors, by ordinance; and
  • other locations approved by local ordinance.

Cameras ticket only at least 10 mph over the limit. The civil penalty may not exceed $100, and a mailed summons is not a conviction, does not appear on the driving record and is not used for insurance. New devices placed after July 1, 2026 start with a 30-day warning period, data must be purged after 21 days unless a summons issues, and signage rules tighten on July 1, 2027.

This page describes the statutes as published as of October 2026 and is not legal advice; check the current Code of Virginia before relying on any provision.

Frequently asked questions

Are radar detectors legal in Virginia?

No. Va. Code § 46.2-1079 makes it unlawful to operate a motor vehicle on Virginia highways that is equipped with a radar or laser detector, to use one, or to sell one in Virginia. The ban covers passenger cars as well as trucks. Virginia and Washington, D.C. are the only U.S. jurisdictions identified with a passenger-vehicle ban.

What is the fine for a radar detector in Virginia?

The maximum fine is $250. Section 46.2-1079 states no amount, so the general Title 46.2 penalty in § 46.2-113 applies, which caps the fine at the Class 4 misdemeanor level set by § 18.2-11(d). The violation is a traffic infraction, and § 46.2-1079(D) provides that no DMV demerit points are assessed. Court costs were not researched.

Can I have a radar detector in my car in Virginia if it is unplugged?

Only if it has no power source and is also not readily accessible to the driver or any passenger, under § 46.2-1079(B). Unplugging it is not enough on its own. Because the device's presence is prima facie evidence of a violation, a detector stored within reach, such as in a console or glove box, still risks a citation.

Will police take my radar detector in Virginia?

They may hold it as evidence, but they may not keep it. Section 46.2-1079 authorizes no forfeiture, so the device is to be returned after the case. Only a device that goes unclaimed may be destroyed, and only by court order after six months.

Are laser jammers legal in Virginia?

No. Section 46.2-1079 also bans any device that purposefully interferes with or diminishes the measurement capabilities of police radar or laser, and it bans selling such devices in Virginia. The penalty matches the detector offense: a traffic infraction with a fine of up to $250 and no points. Radar jammers are also illegal under federal FCC rules.

Does Virginia use aircraft for speed enforcement?

The law permits it only in one form. Section 46.2-882 bars State Police and local officers from using radar or laser in airplanes or helicopters, and allows only microcomputer devices that calculate average speed from distance and time, on Interstate highways. No official source confirms that the State Police currently fly such patrols.

How often must police radar be calibrated in Virginia?

At least every six months. Under § 46.2-882, no calibration or testing of a radar, laser or microcomputer speed device is valid for longer than six months, and a certificate of calibration is admissible when accuracy is challenged. Photo speed monitoring devices are the exception, with calibration valid for up to 12 months.

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