FMCSA DOT Decal Requirements: Essential Information for Motor Carriers
For commercial motor vehicles (CMVs) operating in interstate commerce, adherence to Federal Motor Carrier Safety Administration (FMCSA) DOT decal regulations is paramount for compliance, safety, and efficient operations. These regulations ensure clear identification and accountability of motor carriers.
Key requirements include:
Who Needs a Decal: Generally, CMVs exceeding 10,000 lbs (GVWR, GCWR, GVW, or GCW), vehicles transporting a specified number of passengers, or those hauling placarded hazardous materials require a USDOT number displayed.
Required Information: Decals must clearly display the motor carrier's legal name or single trade name (matching your MCS-150 filing) and the USDOT number, preceded by "USDOT."
Placement and Visibility: The decal must be affixed to both sides of the power unit (typically the cab or doors) in a conspicuous location that is not obscured. Lettering must contrast sharply with the vehicle's background and be readily legible from 50 feet away during daylight hours. A minimum lettering height of 2 inches is required by federal law, though some states may have additional or higher standards (e.g., 4 inches or VIN portions).
Durability and Maintenance: Decals must be made from durable, weather-resistant materials and maintained to remain fully legible and visible, free from fading, peeling, or damage.
Failing to comply with these regulations can lead to significant fines, citations, and even out-of-service orders. Ensuring your fleet is properly marked is a fundamental step in maintaining compliance and demonstrating your commitment to road safety.