393.9B-LSML — Lighting - Side marker lamp(s) obscured
FMCSA violation code under Vehicle Maintenance. 615 events recorded in roadside inspections. Severity weight: N/A.
Violation Description
Lighting - Side marker lamp(s) obscured
About This Violation Code
Code 393.9B-LSML falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS).
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 393.9B in the Federal Motor Carrier Safety Regulations.
Top Enforcing States
Where 393.9B-LSML 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 393.9B-LSML citations. Red bars mark months with OOS-triggering citations.
Most Active Stations
Inspection stations citing 393.9B-LSML 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 • 580 carriers total • Page 1 of 24
Top Carriers with 393.9B-LSML Violations
Showing 25 of 580
| # | Carrier | USDOT | # Violations |
|---|---|---|---|
| #1 | TOPGRADE PRODUCTS INC | 1688542 | 4 |
| #2 | YOUNG'S INC | 4068052 | 4 |
| #3 | FARM FRESH DISTRIBUTION CORP | 4362166 | 2 |
| #4 | LLG&C TRUCKING LLC | 3736035 | 2 |
| #5 | TRAREYSA LLC | 2784777 | 2 |
| #6 | YOURWAY TRANSPORT INC | 722660 | 2 |
| #7 | LYNN F BINDER | 520188 | 2 |
| #8 | C AND C NORTH AMERICA INC | 1553083 | 2 |
| #9 | RTVELI INCORPORATED | 3796207 | 2 |
| #10 | SHAW MOWING LLC | 1875739 | 2 |
| #11 | EXPRESS HAULERS LLC | 3715137 | 2 |
| #12 | MOHSEN TRANSPORTATION INC | 2018502 | 2 |
| #13 | RAINIER AMUSEMENTS LLC | 2575865 | 2 |
| #14 | THOMAS LYLE SHAFER | 3460631 | 2 |
| #15 | TIGER LINES LLC | 80289 | 2 |
| #16 | WESTERN EXPRESS INC | 511412 | 2 |
| #17 | VRP TRANSPORTES DE MEXICO S DE RL DE CV | 662058 | 2 |
| #18 | TRANSPORTES CAPRICORNIO INC | 3004904 | 2 |
| #19 | TOVAR A TRUCKING | 3583540 | 2 |
| #20 | CAPITOL PAVING OF D C INC | 376003 | 2 |
| #21 | HAILEYS LOGISTICS LLC | 2838145 | 2 |
| #22 | VESTIS SERVICES LLC | 221707 | 2 |
| #23 | BONNIE JIMENEZ | 2884278 | 2 |
| #24 | US FOODS INC | 358597 | 2 |
| #25 | EVANS DELIVERY COMPANY INC | 38111 | 2 |
Recent Inspections
Latest inspections where 393.9B-LSML was cited • 615 total events • Page 1 of 25
Recent Inspections with 393.9B-LSML
Showing 25 of 615
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Apr 1, 2026 | 87458973 | AL | Level 2 | No |
| Mar 31, 2026 | 87472509 | AZ | Level 2 | No |
| Mar 30, 2026 | 87455766 | AZ | Level 2 | No |
| Mar 27, 2026 | 87430958 | FL | Level 2 | No |
| Mar 26, 2026 | 87428497 | FL | Level 2 | No |
| Mar 25, 2026 | 87393344 | AL | Level 2 | No |
| Mar 24, 2026 | 87447184 | NY | Level 2 | No |
| Mar 23, 2026 | 87449533 | NJ | Level 2 | No |
| Mar 20, 2026 | 87345823 | CA | Level 1 | No |
| Mar 20, 2026 | 87349282 | PA | Level 1 | No |
| Mar 19, 2026 | 87389875 | AZ | Level 1 | No |
| Mar 18, 2026 | 87326626 | CA | Level 1 | No |
| Mar 15, 2026 | 87305955 | CA | Level 2 | No |
| Mar 14, 2026 | 87306097 | CA | Level 2 | No |
| Mar 13, 2026 | 87338216 | NY | Level 1 | No |
| Mar 13, 2026 | 87338370 | NY | Level 1 | No |
| Mar 13, 2026 | 87338690 | MN | Level 2 | No |
| Mar 12, 2026 | 87287277 | CA | Level 1 | No |
| Mar 12, 2026 | 87320632 | NY | Level 2 | No |
| Mar 12, 2026 | 87292775 | UT | Level 2 | No |
| Mar 11, 2026 | 87370112 | US | Level 1 | No |
| Mar 11, 2026 | 87281252 | FL | Level 2 | No |
| Mar 6, 2026 | 87280785 | NY | Level 1 | No |
| Mar 6, 2026 | 87278887 | NY | Level 2 | No |
| Mar 5, 2026 | 87239679 | VA | Level 1 | No |