393.11 — Lighting devices/reflectors
FMCSA violation code under Vehicle Maintenance. 179,734 events recorded in roadside inspections. Severity weight: 3.
Violation Description
Operating a commercial motor vehicle with inadequate or missing lighting devices or reflectors.
About This Violation Code
Code 393.11 falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 3 (scale 1-10, higher = more severe).
When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.
Regulatory Reference
Federal Motor Carrier Safety Regulations
This violation references 49 CFR 393.11 in the Federal Motor Carrier Safety Regulations.
Top Enforcing States
Where 393.11 is most commonly cited (last 180 days)
Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.
Citation Trend (12 months)
Monthly count of 393.11 citations. Red bars mark months with OOS-triggering citations.
Most Active Stations
Inspection stations citing 393.11 most often (last 180 days)
Often Cited Together
Other violations commonly found on the same inspection (last 90 days)
Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).
Top Carriers Cited
Ranked by frequency • 77,368 carriers total • Page 1 of 3095
Top Carriers with 393.11 Violations
Showing 25 of 77,368
Recent Inspections
Latest inspections where 393.11 was cited • 179,734 total events • Page 1 of 7190
Recent Inspections with 393.11
Showing 25 of 179,734
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Apr 2, 2026 | 87487977 | TX | Level 2 | No |
| Apr 2, 2026 | 87488294 | TX | Level 2 | No |
| Apr 2, 2026 | 87486808 | IL | Level 2 | No |
| Apr 2, 2026 | 87486667 | NC | Level 5 | No |
| Apr 2, 2026 | 87488395 | TX | Level 2 | No |
| Apr 2, 2026 | 87487734 | TX | Level 2 | No |
| Apr 2, 2026 | 87488114 | TX | Level 1 | No |
| Apr 2, 2026 | 87487794 | TX | Level 1 | No |
| Apr 2, 2026 | 87488016 | TX | Level 2 | No |
| Apr 2, 2026 | 87487229 | TX | Level 2 | No |
| Apr 1, 2026 | 87479764 | TX | Level 2 | No |
| Apr 1, 2026 | 87477693 | IL | Level 3 | No |
| Apr 1, 2026 | 87477440 | IA | Level 2 | No |
| Apr 1, 2026 | 87479788 | TX | Level 2 | No |
| Apr 1, 2026 | 87488240 | TX | Level 2 | No |
| Apr 1, 2026 | 87487668 | TX | Level 2 | No |
| Apr 1, 2026 | 87487741 | TX | Level 2 | No |
| Apr 1, 2026 | 87488376 | TX | Level 2 | No |
| Apr 1, 2026 | 87479879 | TX | Level 1 | No |
| Apr 1, 2026 | 87485978 | NC | Level 2 | No |
| Apr 1, 2026 | 87486002 | NC | Level 2 | No |
| Apr 1, 2026 | 87488277 | TX | Level 1 | No |
| Apr 1, 2026 | 87487077 | TX | Level 2 | No |
| Apr 1, 2026 | 87487106 | TX | Level 1 | No |
| Apr 1, 2026 | 87487125 | TX | Level 2 | No |