FMCSR 393.25A: Obscured Rear Lamps – Driver Q&A

No. Across our inspection records, 393.25A citations resulted in an out-of-service placement in only 1.1% of cases (3 out of 267 all-time citations). For context, the national average OOS rate across all FMCSR codes is 31.4%, so this violation is far less likely to ground your truck. However, if an inspector finds the rear lamps completely non-functional and obscured, you may face additional citations that carry higher OOS risk.

What this means: You'll likely be able to drive to a repair facility, but don't delay addressing it.

A 393.25A citation carries a CSA severity weight of 3. In FMCSA's Safety Management Cycle, your total points depend on when the citation was issued relative to your 12-month lookback window. A weight-3 violation cited today counts at full value for the next year; citations older than 12 months drop off.

What this means: One 393.25A citation is moderate in severity. If you accumulate multiple citations in a short timeframe, your BASIC score can climb quickly, so fix this and avoid repeat violations.

1. Document the current state: Take photos of the obscured lamps from multiple angles for your records or DataQs contest if you believe the finding was incorrect.
2. Inspect all rear lighting: Don't just clear the obstruction—verify all required rear lamps, reflectors, and markers are functional. In the last 90 days, 393.25A appeared with inoperable lamps (393.9) in 24 shared inspections.
3. Schedule repair: Remove or reposition the load to expose lamps; check for burned-out bulbs or broken reflectors.
4. Get a re-inspection or safety sign-off: If stopped again soon, you want evidence of compliance.
5. Review load securement: Improper loading caused this; adjust your packing method to prevent recurrence.

Not as serious as inoperable lamps, but it's still a maintenance issue. Our data shows 393.9 (Inoperable Required Lamp) has been cited 180,097 times with a 6.9% OOS rate—much higher than 393.25A's 1.1%. However, 393.25A is more about access and visibility than function. The real risk: obscured lamps often signal broader maintenance gaps. In fact, 393.25A co-occurred with brake defects (393.47E, 393.45B2UV) and other component failures in 11 shared inspections over the last 90 days, suggesting drivers with obscured lamps may have other overlooked issues.

Yes, but the outcome depends on whether the finding was a judgment call or factual error. If the inspector documented that rear lamps were obscured by your load—and they were—the citation will likely hold up. DataQs (the FMCSA's data challenge system) works best when you have evidence that:

• The lamps were not actually obscured at the time of inspection,
• Photographs or inspection records contradict the citation, or
• The inspector's documentation doesn't match FMCSR 393.25A's definition.

File within 90 days of the citation with your evidence. Objective photographic proof is your strongest tool.

Over the last 180 days, our inspection database shows Texas led with 83 citations, followed by Illinois (7 citations) and Iowa (3 citations). Texas accounts for the vast majority of 393.25A enforcement in this period.

What this means: If you operate in Texas, pay extra attention to load securement and rear lamp visibility during pre-trips. The concentration of citations in one state suggests regional enforcement focus or higher volume of cross-border commercial traffic where load practices may vary.

Medium urgency. While the OOS rate is only 1.1%, enforcement is active: 170 citations in the last 12 months, with 49 in the last 90 days alone. February 2026 saw a spike with 25 citations in a single month.

What this means: Don't ignore it, but you have time to arrange a proper repair. Fix it before your next inspection cycle. If you're operating in a high-enforcement zone like Texas, prioritize it higher—the 83 citations there in the last 180 days show inspectors are actively checking rear lamp visibility. A quick fix now prevents future citations and keeps your BASIC score clean.

Freightliners dominate with 75 citations, followed by Peterbilts (31) and Kenworths (28). These are the most common heavy-duty tractors on the road, but the high count for Freightliners may also reflect their prevalence in the carrier fleets cited most frequently for this violation.

What this means: If you drive a Freightliner, add rear lamp checks to your pre-trip inspection habit. Ensure your load doesn't ride high or wide enough to block tail lights, and secure tarps so they don't slip and cover your lamps during transit.