f6ab1d71____Regulations___VLEX_19948537__Mountinglocation
[Number and color] 2 Red [Mountinglocation] 
On the rear, at the same height, symmetrically about the vertical centerline, as far apart as practicableOn a truck tractor may be mounted on the back of the cab not less than 4 inches above the height of the rear tires.
49 CFR 571.108 - Standard No. 108; Lamps, reflective devices, and associated equipment. - Regulations - VLEX 19948537
Mountinglocation