TruckCodex

393.9T — Inoperable tail lamp

FMCSA violation code under Vehicle Maintenance. 14,785 events recorded in roadside inspections. Severity weight: N/A.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
14,785
Code
393.9T
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
N/A
Violation Group
—
Total Events
14,785
Carriers Cited
10,695

Violation Description

Inoperable tail lamp

About This Violation Code

Code 393.9T 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 393.9T in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
14,785
OOS Events
1,312
OOS Rate
8.9%
Top State (180d)
Texas
3,228 events

Top Enforcing States

Where 393.9T is most commonly cited (last 180 days)

1.Texas
3,228
OOS 7.2%
2.Iowa
470
OOS 10.0%
3.North Carolina
152
OOS 39.5%
4.New Mexico
134
OOS 14.9%
5.Illinois
116
OOS 19.0%
6.Kentucky
12
OOS 33.3%

Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.

Citation Trend (12 months)

Monthly count of 393.9T citations. Red bars mark months with OOS-triggering citations.

389
Apr
825
May
731
Jun
843
Jul
773
Aug
725
Sep
782
Oct
591
Nov
716
Dec
779
Jan
918
Feb
789
Mar
32
Apr

Most Active Stations

Inspection stations citing 393.9T most often (last 180 days)

1.YSLETA POE
94
OOS 7.4%
2.VETERANS POE
89
OOS 3.4%
3.PHARR POE
76
OOS 1.3%
4.39 - I35 SB MM 212 NORTHWOOD
69
OOS 1.4%
5.BOTA POE
57
OOS 0.0%
6.US281 SB FALFURRIAS SCALE
52
OOS 3.8%
7.45 - HWY 218 NB MM 29 PILOT GR
47
OOS 2.1%
8.US59 NB QUEEN CITY SCALE
43
OOS 2.3%
9.COLUMBIA POE
40
OOS 10.0%
10.INDIOS POE
39
OOS 2.6%

Often Cited Together

Other violations commonly found on the same inspection (last 90 days)

393.92,384 co-occurrences393.9TS832 co-occurrences392.2RG536 co-occurrences393.78463 co-occurrences396.17C448 co-occurrences393.47E355 co-occurrences393.95A268 co-occurrences393.11262 co-occurrences393.75C258 co-occurrences393.45B2UV235 co-occurrences

Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).

Top Carriers Cited

Ranked by frequency • 10,695 carriers total • Page 1 of 428

Top Carriers with 393.9T Violations

Showing 25 of 10,695

fmcsa-violations
Top Carriers with 393.9T Violations
#CarrierUSDOT# Violations
#1RS TRANSFER SA DE CV115682531
#2SERVICIO INTERNACIONAL DE ENLACE TERRESTRE SA DE CV81817530
#3EVANS DELIVERY COMPANY INC3811126
#4SWIFT TRANSPORTATION CO OF ARIZONA LLC5428326
#5TRANSPORTES DE CARGA SAUL SALINAS SA DE CV55767625
#6OPERADORA DE TRANSPORTE INTERNACIONAL SA DE CV68342825
#7GULF WINDS INTERNATIONAL INC69014722
#8RUBEN CARLOS TREVINO SANCHEZ164968922
#9JESUS MA VALDEZ GARCIA253478421
#10TRANSPORTADORA NORTE DE CHIHUAHUA S A DE C V71112521
#11AUTOTRANSPORTES FRONTERIZOS MG SA DE CV177053419
#12FEDERAL EXPRESS CORPORATION8687618
#13VRP TRANSPORTES DE MEXICO S DE RL DE CV66205817
#14TRANSPORTES AGUILA DE CIUDAD JUAREZ SA DE CV55536517
#15SERVICIO DE TRANSPORTE INTERNACIONAL Y LOCAL SA DE CV55734115
#16TRANSPORTE INTERNACIONAL JONICK LOPEZ SA DE CV82098115
#17FLETES MEXICO CHIHUAHUA SA DE CV105311814
#18AGGREGATE HAULERS I L P102148514
#19MULHOLLAND ENERGY SERVICES LLC244417214
#20CNC LOGISTICS S DE RL DE CV272620314
#21NATIONAL DRAYAGE SERVICES DE LLC174709313
#22SERVICIOS DE LOGISTICA TRANSNACIONAL EN TRANSPORTACION SA DE CV238091113
#23JOSE JUAN NIETO ESCOBAR302999312
#24SCHNEIDER NATIONAL CARRIERS INC26418412
#25TEXAS INTERNATIONAL ENTERPRISES INC219691212

Recent Inspections

Latest inspections where 393.9T was cited • 14,785 total events • Page 1 of 592

Recent Inspections with 393.9T

Showing 25 of 14,785

fmcsa-inspections
Recent Inspections with 393.9T
DateReport #StateLevelOOS
Apr 2, 202687488134TXLevel 1No
Apr 2, 202687487975TXLevel 2No
Apr 2, 202687488301TXLevel 2No
Apr 2, 202687488055TXLevel 2No
Apr 2, 202687488378TXLevel 2No
Apr 2, 202687488016TXLevel 2No
Apr 2, 202687486822ILLevel 2No
Apr 1, 202687487298TXLevel 2No
Apr 1, 202687487144TXLevel 2No
Apr 1, 202687487589TXLevel 2No
Apr 1, 202687488024TXLevel 2No
Apr 1, 202687477749ILLevel 2No
Apr 1, 202687487239TXLevel 2No
Apr 1, 202687487270TXLevel 2No
Apr 1, 202687487125TXLevel 2No
Apr 1, 202687487217TXLevel 2No
Apr 1, 202687487238TXLevel 2No
Apr 1, 202687477519IALevel 2No
Apr 1, 202687487968TXLevel 1No
Apr 1, 202687477456IALevel 2No
Apr 1, 202687477440IALevel 2No
Apr 1, 202687477438IALevel 2No
Apr 1, 202687487949TXLevel 2No
Apr 1, 202687487407TXLevel 2No
Apr 1, 202687487416TXLevel 2No

Data sources & freshness

FMCSA Vehicle Inspections and Violations
Unknown freshness
Federal Motor Carrier Safety Regulations (49 CFR)
Unknown freshness

Related records

CategoryAll Vehicle Maintenance Violations
Browse all violation codes in the Vehicle Maintenance BASIC
IndexAll Violation Codes
FMCSR violation codes by BASIC category
ReferenceFMCSA Roadside Inspections
Inspection levels and procedures
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