f6ab1d71____Regulations___VLEX_19948537__Mountinglocation
[Lightingdevice] Stop Lamps [Number and color] 2 Red [Mounting height] Not less than 15 inches, nor more than 72 inches [Device activation] Steady burning.Must be activated upon application of the service brakes. When optically combined with a turn signal lamp, the circuit must be such that the stop signal cannot be activated if the turn signal lamp is flashing. May also be activated by a device designed to retard the motion of the vehicle. [Mountinglocation] 
On the rear, at the same height, symmetrically about the vertical centerline, as far apart as practicable
49 CFR 571.108 - Standard No. 108; Lamps, reflective devices, and associated equipment. - Regulations - VLEX 19948537
Mountinglocation