FMCSA Clarifies Vehicle Marking Rules as Compliance Filing Renews

The Federal Motor Carrier Safety Administration published an information collection notice on June 1, 2026 renewing its Commercial Motor Vehicle Marking Requirements under OMB Control Number 2126-0054. The filing does not introduce new rules but reaffirms existing ones governed by 49 CFR 390.21 that apply to nearly every carrier in the industry. Drivers and fleet managers regularly overlook these marking standards. Interstates are filled with trucks bearing handwritten company names in black marker, USDOT numbers too small to read from a distance, peeling decals, and magnetic signs that have blown off weeks ago. These violations appear on routine inspections and give regulators easy grounds to scrutinize smaller carriers that should know better. The regulations are more specific than many operators realize. Proper markings on commercial motor vehicles are not optional or subject to casual interpretation. Handwritten lettering, paint pens used as substitutes for missing decals, and temporary magnetic signs do not meet federal requirements, yet these shortcuts remain widespread on the road. FreightWaves reports that the public comment window for the notice runs through July 1, 2026. Carriers facing routine compliance checks should use this moment to verify their vehicle markings meet actual federal standards rather than continue relying on workarounds that expose fleets to unnecessary regulatory attention.