What 398.5 means in plain language
FMCSR 398.5 requires that any commercial vehicle transporting migrant workers be maintained in a safe operating condition at all times. This is a specific application of general vehicle maintenance rules, but it applies only to carriers whose business includes moving migrant workers as cargo.
If you're operating a vehicle under this regulation, you must ensure the truck itself—engine, brakes, structure, lighting, tires, and all safety systems—is inspected, repaired, and kept roadworthy. The regulation does not require you to provide certain accommodations or services to passengers; it requires that the vehicle itself is not a safety hazard.
A citation for 398.5 means an inspector found something mechanically or structurally wrong with your truck that made it unsafe to transport workers. That might be a failing brake, rotted flooring, inoperable lights, or any other defect that compromises safe operation.
What our enforcement data actually shows
Across our 13 million+ inspection records, 398.5 is a rare citation. We have recorded 7 citations all-time, with 2 in the last 12 months and none in the last 90 days. This code ranks #2312 of 3,036 FMCSR codes by citation frequency.
The 0.0% out-of-service rate for 398.5 stands in stark contrast to the all-FMCSR average OOS rate of 31.4%. None of the 7 carriers cited for this violation had their vehicle immediately removed from service. This suggests that when 398.5 citations do occur, inspectors are either finding relatively minor defects or the carriers are addressing issues quickly enough to avoid OOS placement.
The enforcement pattern is sparse but real: one citation appeared in July 2025, and another in September 2025. The low volume means you are unlikely to encounter this violation in roadside inspection, but if you do, the consequences are significant enough to understand.
Who gets cited most
Our data is too sparse to identify a dominant state pattern—each of the 7 all-time citations came from different carriers operating in different regions. The top carriers in our database with 398.5 citations include Lester Brothers Excavation Inc, John Orton Exc Inc, Elben Hauling LLC, Bond Carriers Inc, Pars Transportation Inc, Ana Lucia Quintanar Zamudio, and Transportes Riol SA de CV, each with one citation.
This distribution reflects the specialized and relatively rare nature of migrant worker transport operations. Unlike high-volume maintenance codes that affect tens of thousands of general freight carriers, 398.5 citations cluster among a small number of carriers in the agricultural and labor-intensive transportation sector.
How severe is this compared to similar codes
398.5 exists within the vehicle maintenance category alongside much higher-volume codes. For perspective:
393.9(a) — Inoperable required lamps has generated 660,737 citations across our database with a 15.4% OOS rate. Lamp defects are far more common and more frequently result in immediate out-of-service orders.
396.3(a)(1) — Inspection/repair/maintenance (general) has 236,919 citations with a 45.3% OOS rate. This is the broadest maintenance code and has the highest OOS rate among peer codes, reflecting its use for serious systemic defects.
396.17(c) — No proof of periodic inspection has 198,331 citations but a 0.0% OOS rate, like 398.5. This shows that documentation failures can match maintenance violations in citation frequency but remain non-safety-critical in enforcement discretion.
The zero OOS rate for 398.5, matched only by a few other maintenance codes in the database, suggests inspectors view citations under this code as correctable without immediate removal from service—but the underlying defect is still serious enough to warrant a citation and compliance action.
How to avoid it
Conduct a thorough pre-trip inspection every time you operate a vehicle for migrant worker transport. This is not optional compliance theater; inspectors will examine your truck with extra scrutiny if you're carrying workers as cargo.
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Check all braking systems: Test brake pedal feel and responsiveness before leaving the lot. Brake failure is a leading cause of vehicle maintenance citations and an absolute safety hazard when transporting passengers. Look for spongy brakes, fluid leaks under the truck, or excessive stopping distance.
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Verify all lights function: Walk the truck and turn on headlights, taillights, brake lights, turn signals, and any marker lights. A single inoperable lamp can trigger a citation and is the most common vehicle maintenance violation in our database (660,737 citations for 393.9(a) alone).
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Inspect structural integrity: Look for rust, cracks, or rot in the cab, cargo area, flooring, and frame. If workers will be sitting in the cargo area, confirm there are no sharp edges, protruding bolts, or weakened metal that could injure them during transit.
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Check tires for tread and damage: Use a depth gauge if available; penny test as a minimum. Bald or damaged tires are an immediate safety issue and a standard inspection point.
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Ensure all mirrors, wipers, and windshield are clear: Visibility defects are routine inspection items and are easy to fix before you leave.
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Test horn, emergency equipment, and any onboard safety devices: If your truck carries extinguishers, first-aid kits, or other safety equipment, verify they are present and accessible.
The vehicles most frequently cited under this code in our data include Freightliner and Kenworth models. This does not imply a defect pattern in those makes, but rather that these tractors and heavy trucks are commonly used in this segment of transport. Older or higher-mileage examples of these makes require even more rigorous pre-trip attention to maintenance items.
If you receive a 398.5 citation, correct the defect immediately and document the repair. Request a re-inspection if the vehicle was nearly placed out of service, or if you have any doubt about whether the issue is fully resolved.