f6ab1d71____Regulations___VLEX_19948537__Mountinglocation
[Number and color] 2 Amber or red Truck tractor exception, see S6.1.1.3 [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