What 398.7-MW means in plain language
FMCSR 398.7-MW requires that vehicles used to transport migrant workers be properly inspected and maintained. This is a vehicle maintenance standard, not a safety audit or licensing issue. The regulation ensures that any motor vehicle carrying migrant workers meets baseline mechanical and structural standards before it operates on public roads.
In practical terms: if you're driving a vehicle designated for migrant worker transport, you must ensure it has been systematically inspected and that any defects discovered during that inspection have been repaired before the vehicle returns to service. This applies to the vehicle's overall mechanical condition, not just emergency equipment.
This is distinct from general commercial vehicle safety rules. It's a specific mandate that applies when the primary use or a significant use of the vehicle is migrant worker transportation.
What our enforcement data actually shows
Across 13 million+ roadside inspections in our database, 398.7-MW has been cited only 3 times all-time, with 2 citations in the last 12 months and 0 in the last 90 days. This makes it one of the rarest FMCSR violations we track—ranked #2551 of 3,036 codes by citation volume.
Of those 3 all-time citations, 1 resulted in an out-of-service order, giving 398.7-MW a 33.3% OOS rate. The all-FMCSR average OOS rate is 31.4%, so this code sits slightly above average in severity when an inspector does cite it. However, the extremely low volume means most drivers and fleet managers will never encounter this violation.
The most recent enforcement activity occurred in October 2025, when 2 citations were issued with no out-of-service placements. The long gaps between citations suggest either strong compliance in this niche sector or limited inspection focus on migrant worker transport specifically.
Who gets cited most
Our inspection records show citations for 398.7-MW are distributed across a very small number of carriers. The three carriers cited were AUTUMN HILL LANDSCAPING INC (USDOT 1239241), USCS TRANSPORT INC (USDOT 1852631), and BURKE BROTHERS LANDSCAPE CONTRACTORS INC (USDOT 2083440), each with 1 citation.
Because only 3 citations exist in our database, geographic and carrier-level trend analysis is not statistically meaningful. No single state dominated enforcement. The vehicle makes involved in the citations were FORD, FRHT, HAWKE, INTERNATIO, and UTIL—each appearing once—indicating no particular model class is at higher risk.
How severe is this compared to similar codes
398.7-MW sits in the Vehicle Maintenance category alongside codes like 393.9(a) for inoperable required lamps (660,737 citations, 15.4% OOS rate), 396.3(a)(1) for general inspection and repair standards (236,919 citations, 45.3% OOS rate), and 396.17C-PI for missing proof of periodic inspection (212,081 citations, 0.0% OOS rate).
In absolute terms, 398.7-MW is cited far less frequently—by orders of magnitude—than any peer code. A driver cited for 393.9(a) is in much larger company; that code generates hundreds of thousands of citations yearly. But 398.7-MW, when cited, carries a slightly elevated OOS likelihood (33.3%) compared to some maintenance codes like 396.17C-PI (0.0% OOS) and 393.47E slack adjuster defects (0.0% OOS), though it falls below the 45.3% severity of general maintenance failures under 396.3(a)(1).
The rarity of 398.7-MW enforcement suggests it is enforced only in specific contexts, likely during targeted migrant worker transport audits or when an inspector notes clear evidence of deferred maintenance in a vehicle marked for that use.
How to avoid it
Before you're assigned a migrant worker transport vehicle:
- Request proof that the vehicle has undergone a formal pre-service inspection. Do not accept a vehicle without documented inspection records.
- Review the inspection report yourself. Look for any noted defects, repairs completed, and sign-off dates. Ask your dispatcher or fleet manager to clarify any unrepaired items.
- If the vehicle was previously out of service or involved in a breakdown, confirm that all repair work has been completed and documented before taking the wheel.
During your pre-trip inspection:
- Perform a thorough walk-around inspection covering lights, reflectors, glass, mirrors, doors, latches, seating, and structural integrity. Pay special attention to any seating or compartments added specifically for passenger transport.
- Check the vehicle's mechanical systems: brakes, steering, suspension, tires, and fluid levels. Do not overlook brake adjustments or wear indicators.
- Test all operational safety systems: horn, wipers, windshield washers, and emergency lighting.
- Document your inspection in writing. Note any discrepancies and report them to your dispatcher immediately.
On an ongoing basis:
- If you drive the same vehicle regularly for migrant worker transport, keep a personal log of any issues you observe between formal inspections. Report recurring problems promptly so they can be addressed before they trigger a citation.
- Understand that migrant worker transport vehicles may face stricter scrutiny during roadside inspections than standard freight vehicles, so maintenance standards must be scrupulous.