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All required lamps must be operational on the rearmost vehicle in any combination (e.g., brake lights, taillights, turn signals, four-way flashers, clearance, identification, side marker, license plate lights). (49 CFR §393.9(a) and 393.11)
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Federal regulation only requires safety chains on full trailers and dolly convertors. State law requires safety chains for semi-trailers, except fifth wheel couplers. (49 CFR §393.70 and KSA 8-1907)
(l) Antispray devices. Antispray mud flaps shall be attached to the rear of each axle except the steering axle. Mud flaps shall have a surface designed to absorb and deflect excess moisture to the road surface.
However, truck-tractors are required retroreflective sheeting (“DOT tape”) on the lower rear of the vehicle, which may be displayed on the mudflaps, mudflap brackets, or on the rear of the cab (49 CFR §393.11).
Snow chains may be used when required for safety because of snow, ice, or other conditions tending to cause a vehicle to skid but are not required. (KSA 8-1742)
Federal law prohibits window tint on the front side windows and windshield less than 70% light transmission (49 CFR §393.60).
Kansas law (KSA 8-1749a) prohibits window tint on vehicles that require Kansas registration with less than 35% light transmission on all windows (front, side, back, windshield). The tint may not extend beyond the AS1 line on the windshield. The tint must be non-reflective, and must not be red, yellow, or amber in color.