What 393.203(c) means in plain language
This regulation requires that a commercial vehicle's hood be properly latched and secured before the vehicle is operated on public roads. The core idea is straightforward: if the hood can fly open while the truck is moving, it creates an immediate hazard for the driver and everyone nearby.
Inspectors check whether the hood is fully closed, latched, and held down by its primary and secondary retention mechanisms. A hood that sits flush but isn't actually latched, one with a broken latch, or one propped up and forgotten after a roadside repair can all trigger a citation under this code.
The practical takeaway is simple — before you move the vehicle, confirm the hood is down, latched, and not going anywhere. This is a pre-trip item that takes about three seconds to verify and nearly zero citations happen when drivers make it a habit.
What our enforcement data actually shows
Across our inspection database, 393.203(c) has generated 10,792 all-time citations, placing it at #221 out of 3,036 FMCSR codes by citation volume. That's a meaningful enforcement presence — this isn't an obscure code that inspectors ignore.
However, the out-of-service picture is far less severe than most Vehicle Maintenance violations. Of those 10,792 citations, only 57 resulted in a vehicle being placed out of service, producing an OOS rate of just 0.5%. To put that in context, the all-FMCSR average OOS rate across all codes is 31.4% — 393.203(c) sits dramatically below that benchmark. In practical terms, getting cited almost certainly means a violation on your record, not a roadside shutdown.
Looking at recent activity, our records show zero citations in the last 90 days and zero in the last 12 months. That drop-off in recent enforcement volume is notable. It may reflect shifting inspection priorities or seasonal patterns in the data, but the all-time volume confirms this is a real enforcement target inspectors know and use.
Who gets cited most
FRHT (Freightliner) leads all vehicle makes with 1,325 citations under this code, followed by KW (Kenworth) at 747 citations and PTRB (Peterbilt) at 555 citations. FREIGHTLIN accounts for another 505 citations, and MACK rounds out the top five with 320 citations. If you're running one of these makes — particularly a Freightliner or Kenworth — hood latch integrity should be a specific, named item on your pre-trip checklist rather than a generic walk-around glance.
On the carrier side, our data shows fleets such as GILBERTO CARRANZA-GOMEZ (USDOT 786840) with 37 citations and JESUS MA VALDEZ GARCIA (USDOT 2534784) with 27 citations leading the all-time count. EVANS DELIVERY COMPANY INC (USDOT 38111) follows with 25 citations, and larger national carriers including J B HUNT TRANSPORT INC (USDOT 80806) at 16 citations and UNITED PARCEL SERVICE INC (USDOT 21800) at 13 citations also appear in the records. Volume at large carriers is often a function of fleet size rather than systemic neglect — but the pattern confirms that no operation is too big or too small for inspectors to write this code.
How severe is this compared to similar codes
Within the Vehicle Maintenance category, 393.203(c)'s 0.5% OOS rate and 10,792 citation count look very different from some of its peers.
Consider 393.9(a) — Inoperable required lamps, which carries 660,737 all-time citations and a 15.4% OOS rate. That's more than 61 times the citation volume of 393.203(c) and an OOS rate roughly 30 times higher. Lamp violations dominate the category in both frequency and severity.
Look at 396.3(a)(1) — Inspection/repair/maintenance - general, which has 236,919 citations and a striking 45.3% OOS rate. That code is a catch-all for maintenance failures serious enough to ground trucks nearly half the time it's cited — a stark contrast to the 0.5% OOS rate here.
For a closer parallel, 393.78 — Windshield condition defective sits at 157,894 citations with a 0.3% OOS rate. Like 393.203(c), it's a visible exterior condition that inspectors can spot instantly, rarely grounds a vehicle, but still generates tens of thousands of citations. The lesson across all three comparisons: visible maintenance defects are reliably cited, and the ones that don't immediately ground vehicles still accumulate on your safety record and contribute to your carrier's CSA scores.
How to avoid it
The data is clear that this violation is almost entirely preventable with a deliberate pre-trip routine. Here's what to make standard practice:
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Add a dedicated hood latch step to your pre-trip. Don't assume the hood is latched because it looks closed. Press down on it, confirm the primary latch is engaged, and check that any secondary safety catch is set. Freightliner, Kenworth, and Peterbilt drivers should pay particular attention — those three makes account for over 2,600 citations combined in our database.
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Check after any roadside engine access. If you or a mechanic opened the hood for any reason — checking fluids, inspecting belts, checking coolant after a warning light — verify both latches are fully engaged before pulling back onto the road. This is the most common scenario where hoods go unsecured.
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Inspect latch hardware for wear or damage. A latch that feels loose, springs back without resistance, or shows visible corrosion is a latch that could fail under highway vibration. If it's questionable, report it before the trip, not after the citation.
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Verify after a shop visit. Maintenance facilities work fast, and hood closures can be overlooked when a technician is moving on to the next vehicle. A 30-second check before leaving the yard costs nothing compared to a violation that goes on your driver record.
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Include the hood check in your log narrative if you're flagged. If you've already been cited, documenting your corrective action — specifically that you're now performing a named hood-latch verification at each pre-trip — demonstrates a pattern of compliance that matters during future inspections and safety audits.