Are radar detectors legal in all US states?

No. Radar detectors are prohibited in Virginia and Washington, D.C., and federal regulation 49 CFR § 392.71 prohibits their use or possession in commercial motor vehicles covered by that regulation.

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2026 State Traffic Law Guide

US State Speed Limits & Traffic Fines Guide

Q: Do traffic ticket points automatically transfer between US states?

There is no single nationwide points system. States exchange conviction information through interstate compacts and other reporting systems, but the reporting and license consequences depend on the states and the driver's home-state rules.

2026 reference guide to US speed-limit rules, radar-detector restrictions, Virginia reckless-driving thresholds, speeding penalties, and out-of-state traffic-record reporting. Exact ticket amounts and license consequences vary by jurisdiction.

Speeding Ticket Fine & Penalty Estimator

Enter how many mph over the posted limit you are considering. Exact fines cannot be calculated reliably from mph alone because penalties depend on the state, statute, roadway, violation level, court, and applicable surcharges.

Select US State

Miles Per Hour Over Posted Limit (mph)

Speed Excess: 15 mph over

Highest posted limit represented here: 85 mph

Radar Detector Law: Generally legal for passenger vehicles, subject to other restrictions

State Specifics: Texas permits posted speed limits up to 85 mph on qualifying highways; SH 130 is a well-known example.

Fine estimate: Not provided. A reliable fine requires the specific state, violation statute, exact posted limit, location, and applicable court/assessment schedule.

How US Speed Limits and Speeding Penalties Work

There is no single nationwide speed limit or speeding-fine formula. States establish statutory maximums, transportation agencies and local authorities establish posted limits for particular road segments, and special rules can apply to school zones, work zones, urban roads, commercial vehicles, and other circumstances.

Speed limits depend on the roadway

A state's highest permitted posted speed is not the same thing as the speed limit on every interstate, rural highway, or local road. Texas, for example, permits up to 85 mph on qualifying highways, while California generally uses a 65 mph maximum but permits 70 mph on qualifying roads. Florida permits up to 70 mph on limited-access highways, and New York permits up to 65 mph on qualifying state roadways.

Speeding fines are not universal formulas

A ticket's total financial consequence can include the statutory fine, court assessments, surcharges, local fees, and other consequences. Some states use different penalty schedules for different speed ranges or zones. For that reason, this page does not present invented “base fine + dollars per mph” calculations as if they were legally applicable statewide.

Radar detectors are different from speed enforcement

Radar speed measurement by law enforcement is different from a driver's possession or use of a radar detector. Virginia prohibits radar detectors in motor vehicles on its highways, while federal regulation separately prohibits their use or possession in commercial motor vehicles covered by 49 CFR § 392.71.

Frequently Asked Questions

Texas permits posted speed limits up to 85 mph on qualifying highways, including portions of State Highway 130. The actual limit is always the posted limit for that roadway segment.

No. Radar detectors are prohibited in Virginia and Washington, D.C. They are also prohibited in commercial motor vehicles under federal regulation 49 CFR § 392.71. State and local restrictions can add additional rules.

Virginia Code § 46.2-862 defines reckless driving to include driving 20 mph or more above the applicable maximum speed limit or driving faster than 85 mph regardless of the applicable limit. Reckless driving is a Class 1 misdemeanor; under Virginia Code § 18.2-11, a Class 1 misdemeanor can carry up to 12 months in jail and a fine of up to $2,500.

Not automatically in the sense of a single nationwide points system. States exchange conviction information through interstate compacts and other reporting systems, but whether an out-of-state conviction is reported, how it is recorded, and what points or license consequences apply are governed by the driver's home state and the applicable agreements.

No. Speeding penalties vary by state and can depend on the exact statute, posted limit, speed over the limit, roadway or zone, court schedule, surcharges, and whether the violation triggers enhanced or criminal penalties. A universal formula such as a fixed base fine plus dollars per mph is not legally reliable across states.

Have questions about state speed limits, Virginia reckless driving, or radar detector laws?

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Traffic Law Reference

GHSA State Speeding-Law Reference