Are Radar Detectors Legal in New York? Cars, Trucks, Scanners and Windshield Rules

Last reviewed: October 18, 2026. This article is general information, not legal advice. We read New York statutes in a reproduction of the Consolidated Laws because the Senate's own site was unavailable to us, so check the official text for recent changes.

New York is one of the states where you'll find the most confusing advice about radar detectors. Part of the reason is an old law about police radios, Vehicle and Traffic Law (VTL) § 397, that some sites mix up with detectors. The other part is a separate law, VTL § 397-a, that bans detectors in heavy and commercial vehicles only. This page untangles both. For other states, see our guide to where radar detectors are legal.

Short answer: yes, radar detectors are legal in New York in private passenger vehicles. New York bans them in any vehicle with a gross vehicle weight rating over 18,000 pounds and in commercial vehicles over 10,000 pounds (VTL § 397-a), and the federal rule bans them in commercial motor vehicles. VTL § 397 is about police radio receivers, such as scanners, not radar detectors. Mount the detector so it doesn't block your view through the windshield.

Private cars: legal in New York

New York has no statute that bans a radar detector in an ordinary passenger car, SUV, minivan or light pickup. Section 397-a is limited to vehicles above its weight thresholds, which leaves typical family and commuter vehicles outside it.

A detector is a receiver. It listens for police radar (and, on many models, laser) and warns you. It doesn't stop an officer from pacing you, and it doesn't change the speed limit in a work zone or a New York City school zone.

VTL § 397: police radios, not radar detectors

You'll often see VTL § 397 cited as New York's "radar detector law". It isn't. Its title is "Equipping motor vehicles with radio receiving sets capable of receiving signals on the frequencies allocated for police use."

In summary, § 397 makes it a misdemeanor, punishable by a fine of up to $1,000, up to six months in jail, or both, for a person who is not a police or peace officer to:

• equip a motor vehicle with a radio receiver that can receive signals on frequencies allocated for police use, or knowingly use a vehicle so equipped, or
• knowingly interfere with the transmission of police radio messages,

without first getting a permit from the local authority named in the statute. Licensed amateur radio operators using equipment on amateur frequencies are exempt.

That law is aimed at police scanners and similar radios that pick up police communications. A radar detector picks up the radar or laser beam from a speed gun, not dispatch messages. The legislature also passed a separate section, § 397-a, specifically for radar and laser detectors, and limited it to heavy and commercial vehicles. If you also have a scanner in your car, § 397 is the law to read, and it's far more serious than the detector rule.

Heavy and commercial vehicles: VTL § 397-a

Section 397-a bans using a radar or laser detector in two kinds of vehicles:

How § 397-a works in practice:

• Presumption of use. A detector that is "connected to a power source and in an operable condition" is presumptive evidence that the driver used it. You can rebut that with credible, reliable evidence it wasn't in use.
• No seizure. The section says it does not authorize seizure or forfeiture of the detector, unless another law provides for it.
• Small fine. A violation is a traffic infraction with a fine of $25 to $100.
• Not just trucks. The 18,000-pound test applies to any motor vehicle, so a big motorhome rated above that weight appears to be covered.

The federal ban is stricter

For interstate commercial drivers, the federal rule goes further than New York's. Under 49 CFR § 392.71, you may not operate a commercial motor vehicle that is "equipped with or contains" a detector, so an unplugged unit in the cab still breaks the rule. Motor carriers may not "require or permit" a violation.

Under 49 CFR § 390.5, a commercial motor vehicle generally includes one rated at 10,001 pounds or more, one designed or used to carry more than 8 passengers (including the driver) for pay or more than 15 not for pay, or one carrying placarded hazardous materials. A "radar detector" includes devices that detect radio microwaves, laser beams "or any other future speed measurement technology". A device carried outside the driver's compartment is excluded only if it's completely inaccessible to, inoperable by and imperceptible to the driver while driving.

If you drive for work in New York, the simplest rule is: no detector in any truck, bus or van you drive for a living.

Windshield mounting under VTL § 375(30)

New York's view-obstruction rule says: "It shall be unlawful for any person to operate a motor vehicle with any object placed or hung in or upon the vehicle, except required or permitted equipment of the vehicle, in such a manner as to obstruct or interfere with the view of the operator through the windshield, or to prevent him from having a clear and full view of the road and condition of traffic behind such vehicle."

The subdivision adds that a summons for violating it "shall only be issued when there is reasonable cause to believe" the driver has also broken another New York law. So it's a secondary offense, but it can still be added to a speeding ticket. To keep your detector clear of it:

• Mount it low on the windshield or on the dash, out of your direct line of sight.
• Avoid hanging cords across the glass or from the mirror.
• Consider a hard-wired or mirror-mount install.

New York also restricts window tint; see our guide to window tint laws in New York.

Radar jammers and laser jammers

• Radar jammers transmit radio signals to confuse police radar. Federal law bars anyone from willfully or maliciously interfering with licensed or government radio communications (47 U.S.C. § 333), so radar jammers are illegal in New York as everywhere else.
• Laser jammers fire light rather than radio waves. We found no New York statute that bans them specifically. Some states do, including Virginia and Illinois, so a laser jammer can become illegal the moment you cross a state line.

The FCC rule behind detectors

The FCC regulates radar detectors as unintentional radiators under Part 15. Since 2002, 47 CFR § 15.109(h) has required that "Radar detectors shall comply with the emission limits in paragraph (a) of this section over the frequency range of 11.7-12.2 GHz." The FCC adopted the limit after detectors were found leaking strong signals into the band used by small satellite (VSAT) terminals. Its 2002 order also noted that manufacturers had moved to higher oscillator frequencies partly to make detectors harder for police to detect. Buy an FCC-certified unit through normal US retail channels.

Military bases and Washington, D.C.

• Military bases. New York's installations, such as Fort Drum and West Point, set their own traffic rules. Federal rules for Army installations (32 CFR § 634.25) note that Defense Department policy delegates authority to installation commanders to set additional traffic rules, and detectors are widely reported to be banned on bases. We could not open a single federal rule that bans them on every base, so check the installation's traffic code before you drive on.
• Washington, D.C. The District bans selling detectors and using or possessing one in a car (18 DCMR § 736). Driving south through Virginia, the detector must be unpowered and out of reach.

Sources

• N.Y. Vehicle and Traffic Law § 397-a (radar detectors and laser detectors prohibited): New York Senate; reproduction read at newyork.public.law
• N.Y. Vehicle and Traffic Law § 397 (radio receivers on police frequencies): New York Senate; reproduction read at newyork.public.law
• N.Y. Vehicle and Traffic Law § 375 (equipment, including subdivision 30): New York Senate; reproduction read at newyork.public.law
• 49 CFR § 392.71 (radar detectors in commercial motor vehicles): Cornell LII
• 49 CFR § 390.5 (definitions): Cornell LII
• 47 U.S.C. § 333 (willful or malicious interference): Cornell LII
• 47 CFR § 15.109 (radiated emission limits, including radar detectors): eCFR
• FCC, Radar Detectors final rule, 67 FR 48993 (July 29, 2002): GovInfo
• 32 CFR § 634.25 (installation traffic codes): Cornell LII
• District of Columbia Municipal Regulations, 18 DCMR § 736: DC Regulations