What 390.17 means in plain language
FMCSR 390.17 sits in the General and Administrative section of the federal motor carrier safety regulations. At its core, it establishes that motor carriers and drivers operating commercial motor vehicles must comply with applicable state and local laws, ordinances, and regulations — including those governing vehicle size, weight, and equipment — in every jurisdiction where they operate. Think of it as a federal backstop: the rule says you can't use federal authority as a reason to ignore what a state or local government lawfully requires of your vehicle or operation.
In practical terms, this means an inspector can write you up under 390.17 when they determine you are operating in a way that conflicts with a state or local requirement that applies to your vehicle or trip, even if no other specific federal code covers the exact situation. It is a broad, catch-all administrative provision rather than a narrow technical standard.
Because it is administrative in nature, the violation doesn't typically point to a single broken part or missing document. Instead, it reflects a failure to account for the full web of rules that govern where and how your CMV may legally operate in a given state.
What our enforcement data actually shows
Here is the headline number that should give you immediate relief: across our 13 million+ inspection records, 390.17 carries a 0.0% out-of-service rate. Of the 3,805 all-time citations in our database, not one resulted in a driver being placed out of service. Compare that to the all-FMCSR average OOS rate of 31.4% across all codes, and it becomes clear that this citation, on its own, will not park your truck on the spot.
That said, the enforcement activity around this code is not trivial. Our inspection records show 1,172 citations in the last 12 months alone, and 312 in just the last 90 days. The code ranks #401 out of 3,036 FMCSR codes by all-time citation volume, which puts it in roughly the top 13% of all federal codes by how often inspectors reach for it. This is not a rarely-used obscure provision — inspectors know it and apply it with some regularity.
Looking at the monthly trend in our data, citation volume climbed sharply in December 2025 with 152 citations in a single month, stayed elevated at 112 in January 2026, and reached 143 in March 2026. The pattern suggests consistent and growing enforcement attention, not a one-time spike.
Who gets cited most
Geographically, our inspection records show North Carolina leading all states over the last 180 days with 152 citations, followed by Arizona at 66 and Ohio at 64. Iowa recorded 50 citations over the same period. All four of these states sit at a 0.0% OOS rate for this code, consistent with the national picture — the citation doesn't take you off the road, but it does go on your inspection report.
Because the OOS rate variation across the top states is zero — there is no state in our data where this code triggers an OOS finding — the geographic difference is really about enforcement intensity, not about one state being harsher in consequences. If you run lanes through North Carolina or Arizona frequently, you are operating in the two highest-volume states for this code.
On the carrier side, our data shows fleets such as Swift Transportation Co of Arizona LLC (USDOT 54283) with 27 all-time citations, Federal Express Corporation (USDOT 86876) with 23 citations, and United Parcel Service Inc (USDOT 21800) with 23 citations. These are among the highest-volume carriers in the country, and their appearance here reflects operational scale rather than any particular pattern of non-compliance.
How severe is this compared to similar codes
390.17 sits in the General/Admin category alongside several vehicle marking and registration codes. Looking at peer codes in that same category, the volume differences are striking. Code 390.21TB2-DOT has accumulated 74,663 all-time citations in our records — nearly 20 times the volume of 390.17 — though it also carries a 0.0% OOS rate. Similarly, 390.21T(b) shows 61,097 citations at 0.0% OOS, and 390.21TB1-MC sits at 59,189 citations with the same zero OOS rate.
What this comparison tells you is that the General/Admin category as a whole is a low-OOS-risk zone: our data shows these administrative codes almost never result in a driver being parked. But it also shows that 390.17 is a mid-volume code relative to its peers — it gets written significantly less often than the major marking codes, but it is far from dormant. The 3,805 all-time citations put it well above many codes that exist only in regulatory text and almost never appear in actual inspection records.
How to avoid it
Because 390.17 is a state and local compliance provision, the co-occurring violations in our data give you the clearest map of what inspectors are finding on the same inspections where this code appears. Use this checklist before every trip and at every pre-trip inspection.
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Know your route's state-specific requirements before you roll. Permit needs, weight limits on specific roadways, and equipment requirements vary by state. Our records show this code frequently appearing alongside HOS violations (395.8A1-HOSP appeared in 18 shared inspections in the last 90 days), meaning inspectors who are already writing HOS paperwork are also flagging 390.17 — get your logs and state compliance right at the same time.
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Verify your periodic inspection documentation is on the truck. Code 396.17C-PI (no proof of periodic inspection) appeared in 15 shared inspections in the same 90-day window. If you can't prove your vehicle has been inspected, you're handing the inspector additional violations.
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Confirm your ELD is functioning and your form-and-manner entries are correct. Code 395.24 (ELD Form and Manner) co-occurred in 13 shared inspections. An ELD discrepancy invites a deeper inspection that turns up 390.17 alongside it.
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Do a thorough tire check before departure. Code 393.75A3-TAOL (tires leaking or below 50% of maximum inflation pressure) appeared in 9 shared inspections. FRHT and Freightliner vehicles account for the top two cited vehicle makes in our 390.17 records (560 and 543 citations respectively) — if you're in one of those cabs, your pre-trip tire walk-around is not optional.
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Check every required lamp is operational. Code 393.9 (inoperable required lamp) appeared in 8 shared inspections. A burned-out marker light that triggers a stop can easily result in a 390.17 citation for a separate state compliance issue the inspector notices while writing up the lamp.
The citation you received will not put you out of service, but it will appear on your inspection record and can contribute to your carrier's CSA scores. Address the underlying compliance gap now so this doesn't become a pattern.