What 387.301(b) means in plain language
387.301(b) addresses record-keeping and documentation requirements related to driver qualifications and carrier operations. The regulation requires carriers and drivers to maintain accurate, current records that demonstrate compliance with federal motor carrier standards. When an officer cites you for this violation, they found a gap or deficiency in paperwork, certificates, or documentation that should have been available at the time of inspection.
This is an administrative violation—it's not about vehicle condition, driver behavior, or mechanical safety. Instead, it's about whether the right documents are present, legible, and properly maintained. Common triggers include missing or incomplete driver qualification files, absent medical certificates, poorly organized logbooks, or records that don't align with vehicle or carrier information on file.
What our enforcement data actually shows
Across our 13 million+ inspection records, 387.301(b) has generated 230 all-time citations, ranking #1178 out of 3,036 FMCSR codes by citation volume. Over the last 12 months, we recorded zero citations for this code. Over the last 90 days, we also recorded zero citations.
The out-of-service rate for 387.301(b) is exceptionally low: only 1 citation resulted in an out-of-service order out of 230 total, yielding a 0.4% OOS rate. For context, the all-FMCSR average OOS rate is 31.4%, meaning 387.301(b) violations almost never lead to roadside removal. This reflects the administrative nature of the violation—officers typically issue a citation for missing or incomplete documentation rather than pulling you off the road immediately.
Who gets cited most
Our inspection records do not show state-level breakdowns for this code in our current dataset, so we cannot identify the top states where citations occur. However, our data shows that fleets such as Knowles Trucking LLC (USDOT 1246064) with 3 citations and Major Transportation Services Inc (USDOT 1619226) with 2 citations have received multiple citations for this violation. Across all carriers in our database, the citation count remains very low, reflecting the rarity of this enforcement action.
How severe is this compared to similar codes
387.301(b) sits in the General/Admin category alongside other record-keeping and marking violations. Comparing it to peer codes in the same category shows a stark contrast in enforcement frequency:
- 390.21TB2-DOT has 74,663 citations with a 0.0% OOS rate
- 390.21T(b) has 61,097 citations with a 0.0% OOS rate
- 390.21TB1-MC has 59,189 citations with a 0.0% OOS rate
Each of these peer codes is cited tens of thousands of times more often than 387.301(b). The OOS rates for all these codes, including 387.301(b), remain very low—well below the all-FMCSR average of 31.4%—indicating that administrative violations in this category are treated as correctable paperwork issues rather than roadworthiness defects.
How to avoid it
Because 387.301(b) citations are so rare in recent enforcement, the specific co-occurring violation patterns are not available in our dataset. However, the administrative nature of the code tells us what to focus on:
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Maintain your driver qualification file (DQF) or electronic equivalent. Before each shift, confirm your carrier has your current medical certificate, driving record abstracts, and employment verification on file. Ask your dispatcher or safety manager to confirm these are accessible if you're ever stopped.
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Keep your logbook current and legible. Whether you use electronic logging devices or paper logs, ensure entries are clear, complete, and match your actual duty status. Reconcile any discrepancies with your carrier before the next inspection cycle.
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Verify vehicle and carrier documentation is current. Check that your vehicle has current registration, insurance cards, and carrier authority documents visible and organized. Officers often look for these during roadside stops.
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Understand what documentation an officer might request. Roadside inspections often ask for proof of medical certification, proof of identity, and records showing the vehicle is properly registered to your carrier. Being organized and prepared reduces the chance an officer finds missing or unclear records.
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Communicate with your carrier's safety team. If you suspect your DQF or vehicle records might be incomplete, report it immediately so corrections can be made before an inspection occurs.
Because the last 12 months and last 90 days show zero citations for this code, enforcement appears to have shifted focus elsewhere. That said, maintaining meticulous records remains a fundamental compliance responsibility and protects you if you are ever stopped.