Compilation of Rules and Regulations of the State of Georgia
Department 570 - RULES OF DEPARTMENT OF PUBLIC SAFETY
Chapter 570-7 - SPEED DETECTION DEVICES
Rule 570-7-.05 - Speed Timing Devices Standard Specifications

Universal Citation: GA Rules and Regs r 570-7-.05

Current through Rules and Regulations filed through September 23, 2024

To establish minimum performance specifications for speed detection devices.

(a) Speed detection devices listed in the annual administrative order issued by the Commissioner of the Department of Public Safety meet the minimum requirements and are approved. Also sanctioned are speed detection devices from the International Association of Chiefs of Police (hereafter "I.A.C.P.") Combined Radar and Lidar Conforming Product List for speed measuring devices. Radars included on the I.A.C.P. Combined Radar and Lidar Conforming Product List for speed measuring devices must meet specifications defined in 570-7-.05,(b)1., 2., 3., and 4.

(b) Speed detection devices listed upon the I.A.C.P. Combined Radar and Lidar Conforming Product List for speed measuring devices have been determined by the Department to meet the minimum performance specifications and may be utilized provided certain modifications are present.

1. Any mechanism for automatically locking a target speed in the display must be disabled.

2. Any mechanism for warning operators that a display target speed exceeds a present limit, such as audible tone or momentary locking of the display, must be disabled.

3. A minimum of two display windows for moving mode radar so that the patrol speed and target speed may be displayed simultaneously. Radars which have only one window may be used only in the stationary mode.

4. If a doppler audio signal which gives the operator a tone signal directly correlating with the displayed target speed is not present, it must be added.

(c) Other Speed Timing Devices:

1. Speed timing devices utilizing a stopwatch principal measure speed by dividing the distance traveled by the time it took to travel that distance.
(i) Minimum Specifications:
(I) The device shall, if capable of measuring distance, provide visual evidence (i.e., display calibration number) that the calibration switches are set properly; thus, assuring the operator that the device is properly calibrated.

(II) The device, if capable of measuring distance, must permit accurate and reliable speed checks by dialing into the computer previously logged distances.

(III) The device shall, if capable of measuring distance, have the capability of measuring distance in miles and of converting distance into feet by dialing a predetermined number into the computer.

(IV) The device must have the capability of measuring time in increments of not more than 0.036 seconds.

(V) The device shall clear itself automatically upon the initiation of a new speed check No re-set switches required.

(VI) The device shall allow the operator to recall time or distance if the device is capable of measuring distance, upon the completion of a speed check without erasing the calculated speed.

2. Speed Timing devices determining speed by measuring the time of flight of short pulses of infrared light between the instrument and its target.
(i) Minimum Specifications;
(I) The speed of light is constant and the infrared light utilized must, when activated, transmit pulses of infrared light to provide the operator with the true speed of the target vehicle.

(II) Must provide the user, upon command, the target vehicle's speed and distance by displaying this information on a panel provided for this purpose.

(III) Must provide an accurate reading up to a distance of 2000 feet with a light beam width of no more than 8 feet.

(IV) Must provide an accurate reading when the target vehicle has been checked for a minimum of 0.3 seconds.

(V) Must meet or exceed United States Food and Drug Administration Class 1 laser eye safety standards.

(VI) The device must provide the following features:
I. Aiming device;

II. Range display;

III. Lighted target speed display;

IV. Laser transmit indicator, either visual or audible;

V. Target light display intensity control;

VI. Locking device which will maintain displayed speed of target vehicle until cleared by user;

VII. Power control switch.

O.C.G.A. Secs. 40-14-1, 40-14-3.

Disclaimer: These regulations may not be the most recent version. Georgia may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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