What 387.301A means in plain language
FMCSR 387.301A sits in the financial responsibility section of the federal motor carrier safety rules. In plain terms, it requires that certain for-hire motor carriers operating commercial vehicles have proof of the minimum levels of financial responsibility — essentially, evidence that adequate insurance or other security is in place to cover potential liability — accessible or on file as required.
The rule applies to for-hire carriers transporting property, and it sets a floor on the financial protection that must be maintained and demonstrated. When an officer cites 387.301A at a roadside inspection, it generally means documentation showing that the required financial responsibility is in effect could not be verified for the vehicle or carrier in question.
This is an administrative and documentation compliance issue at its core. It is not about the mechanical condition of the truck. It is about whether the right financial coverage paperwork is in order and accessible when an inspector looks for it.
What our enforcement data actually shows
Across our database of 13 million+ inspections, 387.301A has accumulated 3,309 all-time citations. In just the last 12 months, there were 2,277 citations — meaning well over half of the entire historical enforcement volume has occurred recently. In the last 90 days alone, our inspection records show 503 citations, signaling that enforcement activity on this code is currently elevated.
Despite those numbers, the out-of-service picture is almost non-existent. Only 3 out of 3,309 all-time citations resulted in an out-of-service order, producing an OOS rate of just 0.1%. To put that in perspective, the all-FMCSR average OOS rate across all codes in our database is 31.4%. This code comes in at a fraction of that — you are extremely unlikely to be parked for a 387.301A violation on its own. The code is not OOS-eligible as a standard enforcement outcome.
Looking at the monthly trend, citations have been running consistently in the 195–237 range per month from October 2025 through March 2026, with a notable 237-citation peak in October 2025. The volume strongly suggests active enforcement programs targeting financial responsibility documentation, not a random or sporadic check.
Nationally, 387.301A ranks #417 out of 3,036 FMCSR codes by citation volume — placing it solidly in the upper tier of enforcement activity, even though individual consequences per citation tend to be low.
Who gets cited most
Looking at the last 180 days, our inspection records show Washington State leading all jurisdictions with 163 citations, followed by Arizona and Ohio tied at 98 citations each. Massachusetts, Texas, West Virginia, and Florida each logged 46–47 citations over the same period. Puerto Rico appeared in the top 10 with 34 citations, which is notable given the size of its commercial vehicle population relative to states like Texas.
Across all of these top states, the OOS rate sits at 0.0% — not a single out-of-service order in any of them over the last 180 days. There is no meaningful OOS-rate variation to flag; the pattern is uniform.
On the carrier side, our data shows fleets such as Federal Express Corporation (USDOT 86876) with 15 all-time citations and Swift Transportation Co of Arizona LLC (USDOT 54283) with 12 citations appearing near the top of the list. High citation counts at large fleets with enormous vehicle counts reflect exposure from sheer operational scale, not necessarily systemic compliance failures at any individual carrier.
How severe is this compared to similar codes
Within the General/Admin category, 387.301A's 3,309 all-time citations look modest next to some of its peers. For example, code 390.21TB2-DOT has accumulated 74,663 citations — more than 22 times the volume of 387.301A — yet it shares the same 0.0% OOS rate pattern. Similarly, code 390.21T(b) sits at 61,097 citations with a 0.0% OOS rate, and 390.21TB1-MC has 59,189 citations also at 0.0% OOS.
All of these peer codes are administrative and marking violations, and none of them routinely put drivers out of service. What they have in common with 387.301A is that they generate citations, inspection history entries, and potential carrier Safety Measurement System (SMS) points — even when the truck keeps rolling. That means the real risk of 387.301A is not losing hours at the side of the road; it is the accumulation of inspection violations that can affect your carrier's safety score and your own inspection history over time.
How to avoid it
The co-occurring violation pattern in our data is instructive. In the last 90 days, 387.301A appeared in the same inspection as 396.17C-PI (no proof of periodic inspection) 105 times and alongside HOS record-keeping violations 58 times. This pattern tells a clear story: inspections that catch 387.301A are often broad documentation sweeps, not single-issue stops. If your paperwork is thin in one area, officers will find gaps in others.
Here are concrete steps you can take before or during every pre-trip:
- Carry your MCS-90 endorsement or proof of financial responsibility in the cab. Don't assume the carrier's file at headquarters is enough if an officer wants to see it roadside. Know where your copy is before you roll.
- Audit your document packet at the start of each trip. Registration, IFTA credentials, operating authority, and financial responsibility documents should all be verified as current and present — not assumed.
- Check periodic inspection documentation. With 396.17C-PI (no proof of periodic inspection) appearing in 105 shared inspections, a missing or expired annual inspection sticker or paperwork often travels with a 387.301A citation. Confirm your vehicle's annual inspection is current and that proof is on the truck.
- Verify your medical certificate is on file. Code 391.41APC appeared alongside 387.301A in 50 inspections in the last 90 days. An officer reviewing your administrative documents will likely check the medical cert at the same time.
- Know your carrier's USDOT and MC numbers and confirm they appear correctly on the vehicle. Codes 390.21TB2-DOT and 390.21TB1-MC both appeared in the same inspections as 387.301A dozens of times. Marking and documentation violations cluster together.
- If you are on a Freightliner or FRHT unit — which together account for 962 citations in our database, more than any other make — be aware that inspectors frequently encounter these vehicles. The make correlation reflects fleet size, but it also means your odds of a documentation inspection are higher on high-volume equipment types.
The bottom line: 387.301A will not park your truck, but it will follow you and your carrier in inspection records. Tight document discipline before every dispatch is the only reliable way to keep it off your record.