Georgia Speed Trap Laws: Rules, Radar Limits, and Defenses

Georgia speed trap laws limit when county, city, and campus police can use radar to write you a speeding ticket, and a violation of those limits can make the radar evidence inadmissible in court. Local officers generally cannot cite you for going 10 mph or less over the posted limit, cannot operate radar too close to a speed limit reduction or a jurisdictional warning sign, and must keep their patrol vehicles visible to approaching traffic. If any of those rules were broken during your stop, you have a real defense.

The rules below apply to county, municipal, college, and university officers. Georgia State Patrol troopers operate under different standards, which is covered further down.

The 10 MPH Rule

No conviction based on a speed detection device reading can stand against you in Georgia if your speed was 10 mph or less above the posted limit. The rule applies specifically to cases built with radar or LIDAR by county, city, and campus officers. An officer who paces you or estimates your speed by eye is not bound by the same threshold.¹

Three settings are carved out of the 10 mph buffer. In these areas, any amount over the limit can be enforced with radar:

School zones, from one hour before to one hour after normal school hours or school-related supervision programs.
Historic districts listed on the Georgia Register of Historic Places or designated by local ordinance.
Residential zones with speed limits below 35 mph. Roads posted at 35 mph or higher do not qualify.¹

Where Local Officers Cannot Set Up Radar

Near a Speed Limit Reduction

Radar evidence collected by county or municipal officers within 300 feet of a speed limit reduction inside an incorporated municipality is inadmissible. Outside a municipality, or in a consolidated city-county government, the buffer extends to 600 feet. A reading taken inside those zones cannot be used to prosecute a speeding charge under state law or local ordinance.²

Right After a Speed Limit Changes

Whenever a speed limit is newly reduced, radar evidence in that area is inadmissible for 30 days. The exceptions are highway work zones and areas with variable speed limits, which can be enforced immediately.² Many drivers overlook this. If your ticket was issued within 30 days of a new speed limit sign going up, the radar reading cannot be used against you.

Near Jurisdictional Warning Signs

Before any county, municipality, college, or university can operate radar on a state highway, it must post two signs where the highway enters its jurisdiction: one warning that speed detection devices are in use, and one warning of any speed limit change. Both must be at least 24 by 30 inches, visible from every lane in any conditions, and positioned so no other vehicle can block the view. Radar cannot be operated within 500 feet of either sign.³ If an agency never posted the signs, its radar evidence on that highway is challengeable.

Out of Sight of Approaching Traffic

When a county, municipal, college, or university officer runs stationary radar, the patrol vehicle must be visible to approaching motorists from at least 500 feet away. Hiding behind overpasses, vegetation, or structures is not allowed.⁴ This is one of the most litigated provisions in Georgia speed trap law, because visibility can be affected by curves, hills, and obstructions and often comes down to what a driver could actually see from 500 feet back.

Radar Testing and Officer Certification

Any officer operating a speed detection device must be a certified peace officer registered with the Georgia Peace Officer Standards and Training Council and separately certified as a speed detection device operator through that same council. An officer without the speed detection certification cannot legally operate radar, and evidence collected without proper certification is vulnerable in court.⁵

For standard radar devices, testing is more frequent than most drivers realize. Officers must test the radar for accuracy and record the results at the beginning and end of every duty shift, following the manufacturer’s procedure. If the device fails to meet the manufacturer’s minimum accuracy standard at any point, it must be pulled from service immediately and cannot be used again until a qualified technician services, calibrates, and recertifies it.⁶ If the officer who wrote your ticket cannot produce testing logs for that specific shift, the evidence is ripe for challenge.

Your Right to an On-Site Accuracy Test

This is one of the most underused protections in Georgia traffic law. Before issuing a speeding citation based on radar, a county, municipal, or campus officer must inform you that you have the right to request an on-the-spot accuracy test of the device. The notice has to come before the ticket is written, not after.⁶

If you request the test, the officer must perform it. If the device fails to meet the manufacturer’s accuracy requirements, the officer cannot issue the citation, and the device has to be removed from service until it is repaired and recertified. Most drivers never ask because they do not know they can. If you were pulled over and the officer never mentioned this right, that omission becomes a potential defense later.

What These Rules Do Not Cover

The protections above apply to county, municipal, college, and university officers. The Georgia State Patrol operates under different rules. The 500-foot visibility requirement in O.C.G.A. 40-14-7 names county, municipal, college, and university officers and does not include state-level law enforcement.⁴ The 10 mph enforcement buffer in O.C.G.A. 40-14-8 likewise applies only to county, city, and campus officers.¹ A GSP trooper can operate radar from a concealed position and can cite you for going 5 mph over. If your ticket came from a state trooper, the visibility, sign-placement, and 10 mph defenses do not apply the same way.

How to Challenge a Speed Trap Ticket

Georgia’s overlapping radar restrictions give drivers several angles to fight a citation. The strongest defenses target the procedural steps officers are supposed to follow, because a failure at any step can make the radar evidence inadmissible.

Attack the Calibration and Testing Records

Request the officer’s radar testing log for the shift you were cited. If the officer did not test the device at both the beginning and end of that duty tour, or the log is incomplete, the reading may be inadmissible.⁶ Courts take these logs seriously, and agencies with sloppy records often struggle to prove their devices met manufacturer standards.

Check the Distance to Signs and Speed Limit Changes

If the officer was positioned within 300 feet of a speed limit reduction inside a municipality, or within 600 feet outside one, the evidence is inadmissible by statute.² The same is true if the required warning signs at the jurisdictional boundary were missing, too small, obstructed, or improperly placed, or if the officer was operating within 500 feet of those signs.³ Photos or dashcam footage showing the stop location relative to signs and limit changes are strong evidence.

Question the Vehicle’s Visibility

For stationary radar run by local officers, the patrol vehicle must have been visible from at least 500 feet. If the officer was parked behind a hill, curve, overpass, or dense vegetation, argue that the visibility requirement was not met.⁴ Photos taken from the driver’s perspective at roughly the same time of day help establish what was actually visible from 500 feet back.

Raise the Accuracy Test You Were Not Offered

If the officer did not tell you before writing the ticket that you had the right to request an accuracy test, raise that in court. The statute requires notice before issuance, and failure to provide it undermines the procedural foundation of the case.⁶

What a Conviction Still Costs

Points on Your License

Every speeding conviction in Georgia adds points to your driving record. Fifteen points within a 24-month period suspends your license. The scale:

15 to 18 mph over: 2 points
19 to 23 mph over: 3 points
24 to 33 mph over: 4 points
34 mph or more over: 6 points

Speeds less than 15 mph over the limit do not carry points on Georgia’s schedule, though the ticket still appears on your record and can affect insurance.⁷ Fines vary by jurisdiction because each court sets its own schedule within statutory limits, and school and construction zones typically carry enhanced fines.

The Super Speeder Fee

Georgia layers a state-level fee on top of whatever the local court charges. A conviction for driving 85 mph or more on any road, or 75 mph or more on a two-lane road, triggers a $200 Super Speeder fee from the Department of Driver Services.⁸ The Department sends notice within 30 days of receiving your conviction. You have 120 days from that notice to pay.⁹ Miss the deadline and your license is automatically suspended, with a $50 reinstatement fee owed on top of the original $200 before you can drive legally again. The notice often arrives weeks after the case is closed and catches drivers off guard.