CSA
Violation code

392.16

Failing to use seat belt while operating a CMV

Unsafe Driving7Non-OOS· SMS Appendix A v3.20

392.16 is a Seat Belt violation under 49 CFR §392.16. It falls in the Unsafe Driving BASIC with a severity weight of 7/10. Nationally it was cited 146,604 times in the last five years, with an OOS rate of 0.0%.

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National roadside inspection stats

as of 6/20/2026

Inspections

145,520

that found this code

Violations

146,604

total written

OOS rate

0.0%

21 OOS

Source: FMCSA roadside inspection data (last 5 years). The OOS rate is the share of these violations that led the officer to mark the driver or vehicle out of service.

Violation group
Seat Belt
Regulation §
392.16
Severity weight
7
Used in SMS
Yes
Status
Active
Updated
6/20/2026

Last updated June 2026

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Notes

DSMS: Y
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Challenging 392.16 through FMCSA DataQs

If this violation was written incorrectly, here are the angles trucking-safety managers use to contest it. Playbook: Unsafe Driving.

Relevant 49 CFR49 CFR § 392.16

Use of seat belts

A commercial motor vehicle which has a seat belt assembly installed at the driver's seat shall not be driven unless the driver has properly restrained himself/herself with the seat belt assembly.

Common ways to challenge this code

  • Radar / lidar / scale calibration not produced

    The state instrument used to measure speed or weight had no current calibration certificate, or one was never provided when requested.

    Evidence that wins

    • FOIA / public-records request response from the citing agency
    • Calibration log expiration date if produced
    • Driver's contemporaneous note (e.g., independent dashcam speed)
  • Citation based on visual estimate only

    The inspection report indicates the officer estimated speed visually rather than using a calibrated instrument.

    Evidence that wins

    • Inspection report narrative copy showing "visual estimate" wording
    • Officer training records or pacing distance, if obtainable
  • Underlying citation adjudicated

    The underlying state court adjudicated the citation as dismissed, reduced, or amended.

    Evidence that wins

    • Certified court disposition with case number and date
    • Original citation copy

Common pitfalls — avoid these

  • Submitting an uncertified court printout — DataQs requires the clerk-stamped version
  • Forgetting that "guilty of a lesser charge" still counts as conviction — the violation may stay, just at reduced severity

More codes in Unsafe Driving

Same BASIC category — ranked by national citation volume

View all Unsafe Driving codes

Other Seat Belt codes

Codes under the same FMCSA violation group

Frequently asked questions about 392.16

What does violation 392.16 mean?

392.16 is the FMCSA roadside-inspection violation code for "Failing to use seat belt while operating a CMV", part of the Seat Belt group, cited under 49 CFR §392.16.

What BASIC does 392.16 affect?

392.16 falls under the Unsafe Driving BASIC in the FMCSA Safety Measurement System (SMS).

What is the CSA severity weight of 392.16?

392.16 carries a severity weight of 7 out of 10. Higher weights indicate violations more closely tied to crash risk, and they count more toward a carrier's Unsafe Driving score.

Is 392.16 an out-of-service (OOS) violation?

No. 392.16 is not an out-of-service violation, so on its own it does not trigger an out-of-service order at the roadside.

How many CSA points does 392.16 add to a carrier's score?

The point contribution of 392.16 depends on its severity weight (7/10) multiplied by a time weight of 3, 2, or 1 based on how recent the inspection is. You can calculate the exact contribution with the CSA points calculator.

Can 392.16 be challenged through DataQs?

Yes. If you believe 392.16 was recorded in error, you can file a Request for Data Review (RDR) through the FMCSA DataQs system with supporting evidence. A successful challenge can remove or correct the violation on your record.

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