393.134B3 — Cargo securement - large boulders

FMCSA violation code under Vehicle Maintenance. 192 events recorded in roadside inspections. Severity weight: 7.

Severity Weight
7
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
192
Code
393.134B3
Code System
FMCSR
BASIC Category
OOS Eligible
No
Severity Weight
7
Violation Group
Total Events
192
Carriers Cited
137

Violation Description

Aggregate large boulders not secured per specific rules.

About This Violation Code

Code 393.134B3 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 393.134B3 in the Federal Motor Carrier Safety Regulations.

Events (all time)
192
OOS Events
188
OOS Rate
97.9%
Top State (180d)
Iowa
15 events

Top Enforcing States

Where 393.134B3 is most commonly cited (last 180 days)

1.Iowa
15
OOS 100.0%
2.North Carolina
9
OOS 88.9%
3.Kentucky
8
OOS 87.5%
4.Illinois
7
OOS 100.0%
5.New Mexico
2
OOS 100.0%

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

Citation Trend (12 months)

Monthly count of 393.134B3 citations. Red bars mark months with OOS-triggering citations.

4
Apr
9
May
5
Jun
7
Jul
7
Aug
3
Sep
7
Oct
11
Nov
4
Dec
10
Jan
8
Feb
3
Mar
1
Apr

Most Active Stations

Inspection stations citing 393.134B3 most often (last 180 days)

1.LOUISVILLE
8
OOS 87.5%
6.I-57
1
OOS 100.0%
7.IL 149
1
OOS 100.0%
8.421
1
OOS 100.0%
9.CITY STREET
1
OOS 100.0%

Often Cited Together

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

Top Carriers Cited

Ranked by frequency • 137 carriers total • Page 1 of 6

Recent Inspections

Latest inspections where 393.134B3 was cited • 192 total events • Page 1 of 8

Recent Inspections with 393.134B3

Showing 25 of 192

fmcsa-inspections
Recent Inspections with 393.134B3
DateReport #StateLevelOOS
Apr 1, 202687486057NCLevel 2Yes
Mar 30, 202687464033NMLevel 2Yes
Mar 25, 202687407018NCLevel 2Yes
Mar 24, 202687408463IALevel 1Yes
Feb 20, 202687107135ILLevel 2Yes
Feb 16, 202687064236IALevel 2Yes
Feb 13, 202687056891IALevel 2Yes
Feb 12, 202687028530KYLevel 2Yes
Feb 11, 202687015999KYLevel 2Yes
Feb 10, 202687017767ILLevel 2Yes
Feb 3, 202686956763IALevel 2Yes
Feb 2, 202686936406KYLevel 2Yes
Jan 30, 202686937698IALevel 2Yes
Jan 27, 202686906539ILLevel 2Yes
Jan 20, 202686853902IALevel 2Yes
Jan 19, 202686837347KYLevel 2Yes
Jan 19, 202686884220ILLevel 1Yes
Jan 15, 202686804994NCLevel 2Yes
Jan 12, 202686776825IALevel 2Yes
Jan 8, 202686750719IALevel 2Yes
Jan 6, 202686738087IALevel 2Yes
Jan 2, 202686707620NCLevel 2Yes
Dec 29, 202586676535NCLevel 1Yes
Dec 11, 202586570116ILLevel 1Yes
Dec 8, 202586529320ILLevel 1Yes

Data sources & freshness

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