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['DOT marking identification']
['DOT marking identification']
11/08/2025
State Info
DOT marking identification - Illinois
Illinois has not adopted 390.21 of the Federal Motor Carrier Safety Regulations (FMCSRs) for intrastate operations.
| For-Hire Carriers | Intrastate for-hire carriers operating in Illinois are required to have a sign painted on or affixed to both sides of the vehicle, showing the trade name as it appears on the carrier’s Illinois Commerce Commission license or the carrier’s recognized logo, the license number, and registration number of the carrier. The license number of the carrier must be preceded by “ILL.C.C” and followed by the carrier-type designation (“C,” “P,” “CP,” “PR,” or “CPR” as appropriate) as it appears on the carrier’s license. The letters on the sign must be a minimum of 2 ins. high and 1/2 in. wide and be contrasting in color so it is distinguishable during daylight at a distance of 50 ft. while the vehicle is not in motion. |
| Construction Equipment | Construction equipment (self-propelled or towed) used by a contractor or sub-contractor operating intrastate must display the name of the company for which it is employed on the side of the vehicle or trailer. The name must be in letters at least 2 ins. tall and 1/2 in. wide. |
| Hazardous Materials Carriers with FMCSA Safety Permit | Intrastate carriers of certain types and quantities of hazardous materials listed in 385.403 requiring an FMCSA Safety Permit are subject to the U.S DOT identification and marking requirements in 390.19 and 390.21. |
| Private Carriers | Private carriers operating intrastate (except construction equipment and carriers with FMCSA Safety Permit) are not required to display identification on the exterior of their vehicles. |
| Household Goods Carriers | Interstate household goods carriers with a US DOT number that also operate intrastate in Illinois must have both the US DOT number and the Illinois authority identification number displayed on the vehicle. |
['DOT marking identification']
['DOT marking identification']
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