TruckCodex

393.75B — Tire tread depth insufficient (steer)

FMCSA violation code under Vehicle Maintenance. 2,959 events recorded in roadside inspections. Severity weight: 7.

Severity Weight
7
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
2,959
Code
393.75B
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
7
Violation Group
—
Total Events
2,959
Carriers Cited
2,136

Violation Description

Tire on the steer axle of a CMV has less than 4/32 inch tread depth.

About This Violation Code

Code 393.75B falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 7 (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 393.75B in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
2,959
OOS Events
474
OOS Rate
16.0%
Top State (180d)
Texas
743 events

Top Enforcing States

Where 393.75B is most commonly cited (last 180 days)

1.Texas
743
OOS 17.2%
2.Iowa
32
OOS 6.3%
3.Illinois
28
OOS 7.1%
4.North Carolina
17
OOS 0.0%
5.New Mexico
9
OOS 0.0%

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

Citation Trend (12 months)

Monthly count of 393.75B citations. Red bars mark months with OOS-triggering citations.

55
Apr
162
May
155
Jun
167
Jul
189
Aug
143
Sep
191
Oct
147
Nov
134
Dec
118
Jan
170
Feb
170
Mar
3
Apr

Most Active Stations

Inspection stations citing 393.75B most often (last 180 days)

1.COLUMBIA POE
71
OOS 7.0%
2.VETERANS POE
54
OOS 1.9%
3.BOTA POE
39
OOS 2.6%
4.PHARR POE
27
OOS 11.1%
5.YSLETA POE
26
OOS 15.4%
6.INDIOS POE
20
OOS 20.0%
7.16 - I380 SB MM 53 BRANDON
9
OOS 11.1%
8.IH35 NB DEVINE SCALE
9
OOS 0.0%
9.IH35 SB DEVINE SCALE
7
OOS 14.3%
10.FM511 NB
7
OOS 0.0%

Often Cited Together

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

393.9183 co-occurrences393.75C100 co-occurrences392.2RG86 co-occurrences393.45B2UV73 co-occurrences393.7865 co-occurrences396.17C63 co-occurrences393.47E55 co-occurrences396.5B55 co-occurrences393.95A47 co-occurrences393.1147 co-occurrences

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

Top Carriers Cited

Ranked by frequency • 2,136 carriers total • Page 1 of 86

Top Carriers with 393.75B Violations

Showing 25 of 2,136

fmcsa-violations
Top Carriers with 393.75B Violations
#CarrierUSDOT# Violations
#1CNC LOGISTICS S DE RL DE CV272620321
#2TRANSPORTADORA NORTE DE CHIHUAHUA S A DE C V71112520
#3FEDERAL EXPRESS CORPORATION8687619
#4RS TRANSFER SA DE CV115682514
#5RUBEN CARLOS TREVINO SANCHEZ164968911
#6TRANSPORTE INTERNACIONAL LOPEZ OCHOA SA DE C V104190711
#7ROCIO KARINA GUTIERREZ DE HOYOS11732039
#8LUIS MIGUEL JASSO LARA31515339
#9SERVICIOS DE LOGISTICA TRANSNACIONAL EN TRANSPORTACION SA DE CV23809119
#10JESUS ESTEBAN LUGO PINALES35747229
#11FLETES INTERNACIONALES QUINONES SA DE CV31961949
#12TRANSFRONTERA SA DE CV11622088
#13TRANSPORTE INTERNACIONAL JONICK LOPEZ SA DE CV8209818
#14SUSTAITA CARGO SA DE CV19698108
#15EXPIDITE FREIGHT SERVICES SA DE CV30908227
#16MULTISERVICIOS EXPRESS DEL NORESTE SA DE CV8633797
#17OPERADORA DE TRANSPORTE INTERNACIONAL SA DE CV6834287
#18AUTOFLETES GOMEZ LEAL SA DE CV20853087
#19SERGIO VARELA MALDONADO7252267
#20ALMA LUZ SANTOS SALDIVAR18060717
#21GULF WINDS INTERNATIONAL INC6901477
#22TRANSPORTES CRUZADOS SA DE CV16946116
#23TEXAS ELITE HAULING SERVICES INC35219876
#24NEW PRIME INC37066
#25ANGEL RUBIO RAMIREZ37578305

Recent Inspections

Latest inspections where 393.75B was cited • 2,959 total events • Page 1 of 119

Recent Inspections with 393.75B

Showing 25 of 2,959

fmcsa-inspections
Recent Inspections with 393.75B
DateReport #StateLevelOOS
Apr 2, 202687488114TXLevel 1No
Apr 1, 202687479074TXLevel 1No
Apr 1, 202687487629TXLevel 1No
Mar 31, 202687460217NCLevel 2No
Mar 31, 202687469103TXLevel 2No
Mar 31, 202687479232TXLevel 1No
Mar 31, 202687479205TXLevel 1No
Mar 31, 202687479135TXLevel 1No
Mar 31, 202687468228TXLevel 1No
Mar 31, 202687479383TXLevel 1No
Mar 31, 202687487992TXLevel 1No
Mar 30, 202687478865TXLevel 1No
Mar 30, 202687453606ILLevel 1No
Mar 30, 202687467841TXLevel 1No
Mar 30, 202687468121TXLevel 2No
Mar 30, 202687468193TXLevel 1No
Mar 30, 202687438882NCLevel 2No
Mar 27, 202687466493TXLevel 1No
Mar 27, 202687488141TXLevel 1No
Mar 27, 202687442862TXLevel 2Yes
Mar 27, 202687443029TXLevel 2Yes
Mar 27, 202687466971TXLevel 1No
Mar 27, 202687453308IALevel 1No
Mar 26, 202687442801TXLevel 2No
Mar 26, 202687467014TXLevel 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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