What 392.16B-CPASS means in plain language
FMCSR 392.16B-CPASS is straightforward: if your truck has a seat belt assembly installed at the driver's seat, you must wear it while operating the vehicle. This applies to every commercial motor vehicle equipped with that safety hardware—which is nearly all modern trucks on the road.
This isn't a judgment call. Either the seat belt is fastened properly while you're driving, or you're in violation. The regulation exists because seat belts reduce injury and death in crashes, and the FMCSR treats compliance as non-negotiable during operation.
What our enforcement data actually shows
Across our database of 13 million+ roadside inspection records, we've documented 983 all-time citations for 392.16B-CPASS. In the last 12 months, that number was 647 citations. Over the last 90 days, we recorded 109 citations.
Here's the critical part for your situation: this code has a 0.0% out-of-service rate across all 983 citations ever recorded in our data. That means no driver has been placed out of service for this violation. Compare that to the all-FMCSR average out-of-service rate of 31.4%—this code ranks #721 out of 3,036 FMCSR codes by citation volume, and it is substantially less likely to result in an immediate roadside OOS than the typical FMCSR violation.
What matters for you: you will not be pulled off the road solely because of this citation. However, the violation still triggers a CSA severity weight of 3, which means it enters your safety record and can affect your carrier's CSA scores and your own compliance history.
Who gets cited most
Our inspection records show this violation is most frequently cited in Colorado, Washington, and Georgia. Over the last 180 days, Colorado had 44 citations, Washington had 31, and Georgia had 28. All three states show a 0.0% out-of-service rate for this code, consistent with the national pattern.
At the carrier level, our data shows fleets such as NEW PRIME INC with 10 all-time citations and WESTERN EXPRESS INC with 9 citations have the highest documented counts. These numbers reflect the size and inspection exposure of large fleets; they do not indicate systemic non-compliance beyond what the raw citation count shows.
How severe is this compared to similar codes
Seat belt violations fall into the Unsafe Driving category. Examining peer codes in the same regulatory space:
- 392.2 (Operating a CMV while ill or fatigued) has 1,208,164 all-time citations with a 0.8% OOS rate. That's over 1,200 times more citations and a higher OOS likelihood.
- 392.2-SLLSR (Operating a CMV while ill or fatigued) has 191,232 citations with a 0.1% OOS rate—still nearly 200 times more frequent than 392.16B-CPASS.
- 392.2-SLLTCD (Operating a CMV while ill or fatigued) has 85,391 citations with a 0.0% OOS rate.
The data makes clear: while fatigue and illness violations are far more common in the Unsafe Driving space, seat belt non-compliance is treated as a lower-volume issue. Its severity relative to other unsafe-driving codes is proportionally minor.
Trends and co-occurring violations
Our monthly data from the last 12 months shows fluctuation but a consistent pattern. Citation volume peaked at 74 in August 2025, then settled to 40–70 per month through early 2026, with April 2026 showing only 3 citations (likely due to the month being incomplete as of our snapshot date).
When this violation appears, it often co-occurs with other safety issues. In the last 90 days, 18 inspections cited both 392.16B-CPASS and 392.16-D (another seat belt variant). Medical certificate deficiency (391.41APC) appeared in 17 shared inspections, and operating while ill or fatigued (392.2-SLLSR) in 14. This pattern suggests that roadside inspectors finding one safety lapse often discover others—reinforcing the importance of a complete pre-trip checklist.
Vehicle makes most frequently cited for this violation include Freightliner (237 citations), International (91), Ford (91), and Volvo (49). This distribution reflects the overall fleet composition on U.S. roads rather than a defect unique to any brand.
How to avoid it
Before every shift:
- Inspect your seat belt assembly for tears, fraying, or mechanical failure. If the latch won't engage or the belt doesn't retract, report it to your dispatch or mechanic immediately and do not operate that vehicle until repaired.
- Make buckling your seat belt part of your engine-start routine—treat it as non-negotiable as checking mirrors.
- If you're transitioning between different trucks, take 30 seconds to locate and test the seat belt assembly in each one. Familiarity prevents oversight.
During your drive:
- Keep the seat belt fastened from the moment you leave the dock until you park. Do not unbuckle at traffic lights, in rest areas, or during load checks.
- If you're working a shift where fatigue or illness is a factor (as flagged in co-occurring codes), address that first. Proper rest prevents all unsafe-driving citations, not just seat belt lapses.
In your pre-trip inspection:
- Walk through the cab and physically test the seat belt. Tug it hard. Ensure it's not tangled under the seat and that both the lap and shoulder portions are functional.
- Document any defects in writing and notify your safety team. A logged pre-trip finding protects you if the vehicle is cited later—it shows you reported the issue.
The data is clear: this violation is preventable, rarely results in immediate OOS action, but will mark your record if cited. A two-second buckle check every day eliminates the risk entirely.