What happens after a 387.301B citation? Find out the OOS rate, what to do next, and how serious this violation really is.
Ranks #1,304 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.0% is below the FMCSR-wide average of 33.3%.
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Direct answers grounded in TruckCodex inspection data
No. A 387.301B citation will not result in an out-of-service order. Across our inspection records, 387.301B has never been placed out of service—the OOS rate is 0.0% on all 143 all-time citations. This is significantly more lenient than the national average across all FMCSR codes, which sits at 31.4%. You can continue operating while resolving this violation.
First, understand what triggered the citation—documentation or record-keeping issues are common patterns. Our inspection data shows 387.301B frequently appears alongside electronic logging device violations (395.8A, cited together 8 times in the last 90 days) and other documentation codes. Secure copies of all relevant records and communications with your carrier. If your citation involves missing or incomplete paperwork, gather documentation immediately. Review the inspection report for specifics, then contact your carrier's compliance team to understand remediation steps.
387.301B is among the least serious citation types. It ranks #1319 out of 3,036 FMCSR codes by citation volume (143 all-time citations), and it carries a 0.0% out-of-service rate. Comparable general/administrative codes in the same category—like 390.21(b) (USDOT number not displayed) with 13,244 citations and 0.0% OOS rate, or 390.21(a) (vehicle marking requirements) with 25,872 citations and 0.0% OOS rate—show similar leniency. This is a documentation or compliance matter, not a safety-critical defect.
Citation volume for 387.301B has remained relatively steady. Over the last 12 months, inspectors issued 99 citations—an average of about 8 per month. The last 90 days show 20 citations. June 2025 saw the highest single month with 12 citations, while November 2025 had the lowest with just 2. This suggests sporadic enforcement activity rather than a nationwide crackdown, so focus on compliance fundamentals rather than reacting to sudden urgency.
Over the last 180 days, Illinois leads with 14 citations, followed by Texas with 4 citations, and Ohio with 3 citations. Michigan, Massachusetts, and Washington each recorded 2 citations. New Mexico, New York, Pennsylvania, and Virginia each had 1 citation in that period. If you operate in Illinois, be especially mindful of compliance with this code.
Yes, you can challenge any citation through FMCSA's DataQs (Crash and Inspection Query System) if you believe the violation was incorrectly documented or the evidence doesn't support the finding. Since 387.301B is a documentation or administrative code, your contestation should focus on whether the inspector accurately captured your compliance status at the time of inspection. Gather all supporting records—logbooks, certificates, or business documents—and submit them as evidence within the DataQs window. Success depends on the strength of your documentation.
In the last 90 days, 387.301B frequently co-occurs with record-keeping violations: electronic logging device failures (395.8A, 8 shared inspections) and another 387-series administrative code (387.301A, 7 shared inspections). Driver fatigue citations (392.2RG and 392.2UCR) appeared together 5 times each, and missing inspection documentation (396.17C) in 5 inspections. This pattern suggests 387.301B is often discovered during broader compliance audits. If cited for 387.301B, expect questions about your entire documentation and logging system.
Both you and your carrier are affected. FMCSA safety audits consider violations at both the driver and motor carrier level under the Safety Management and Compliance Review (SMCR) program. A citation on your record and on your carrier's record can impact CSA scores and future regulatory attention. The safest approach is to work with your carrier to resolve the citation and prevent recurrence—this is a shared responsibility for compliance.
Where 387.301B is most commonly cited (last 180 days)
Other violations commonly found on the same inspection (last 90 days)
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.