The 10 Most Common FMCSA Vehicle Violations During the 2023 Fiscal Year

Federal Motor Carrier Safety Administration (FMCSA) roadside inspections are examinations of commercial motor vehicles (CMVs) and drivers by Motor Carrier Safety Assistance Program (MCSAP) inspectors. MCSAP inspectors conduct roadside inspections on CMVs and drivers to check that they are in compliance with the Federal Motor Carrier Safety Regulations and Hazardous Materials Regulations.

If an inspection results in a serious violation, the driver is issued an out-of-service (OOS) order. These violations must be corrected before the driver or vehicle can return to service. The FMCSA keeps a close eye on the most common vehicle violations. This data can be used to maintain a safe fleet and keep businesses in compliance with the rules of the road. Here are the 10 most common OOS orders issued for vehicle violations during the 2023 fiscal year.

Violation Code Number of OOS Orders

393.75A3 98,922

396.3A1BOS 49,501

393.9TS 43,200

393.43 27,965

393.75A 23,127

393.9BRKLAMP 22,893

393.9 18,929

393.45 15,977

393.207A 12,574

393.100B 12,518

Description of Violation