393.41 — No or defective parking brake system on CMV

FMCSA violation code under Vehicle Maintenance. 11,285 events recorded in roadside inspections. Severity weight: N/A.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
11,285
Code
393.41
Code System
FMCSR
BASIC Category
OOS Eligible
No
Severity Weight
N/A
Violation Group
Total Events
11,285
Carriers Cited
9,518

Violation Description

No or defective parking brake system on CMV

About This Violation Code

Code 393.41 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 393.41 in the Federal Motor Carrier Safety Regulations.

Events (all time)
11,285
OOS Events
10,689
OOS Rate
94.7%
Top State (180d)
Texas
195 events

Top Enforcing States

Where 393.41 is most commonly cited (last 180 days)

1.Texas
195
OOS 95.4%
2.Iowa
64
OOS 93.8%
3.Illinois
40
OOS 97.5%
4.North Carolina
13
OOS 92.3%
5.New Mexico
9
OOS 100.0%
6.Kentucky
1
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 393.41 citations. Red bars mark months with OOS-triggering citations.

39
Apr
78
May
65
Jun
92
Jul
83
Aug
81
Sep
81
Oct
58
Nov
46
Dec
59
Jan
61
Feb
59
Mar
1
Apr

Most Active Stations

Inspection stations citing 393.41 most often (last 180 days)

1.COLUMBIA POE
89
OOS 97.8%
4.VETERANS POE
8
OOS 100.0%
5.HWY 20
7
OOS 42.9%
6.I-57
6
OOS 100.0%
9.I-64
3
OOS 100.0%

Often Cited Together

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

Top Carriers Cited

Ranked by frequency • 9,518 carriers total • Page 1 of 381

Recent Inspections

Latest inspections where 393.41 was cited • 11,285 total events • Page 1 of 452

Recent Inspections with 393.41

Showing 25 of 11,285

fmcsa-inspections
Recent Inspections with 393.41
DateReport #StateLevelOOS
Apr 1, 202687487822TXLevel 1Yes
Mar 31, 202687465673IALevel 1Yes
Mar 31, 202687465980ILLevel 1Yes
Mar 30, 202687468980TXLevel 1Yes
Mar 27, 202687468737TXLevel 2Yes
Mar 27, 202687466872TXLevel 1Yes
Mar 27, 202687466954TXLevel 1Yes
Mar 27, 202687466874TXLevel 1Yes
Mar 27, 202687466873TXLevel 1Yes
Mar 26, 202687466801TXLevel 1Yes
Mar 26, 202687429224ILLevel 1No
Mar 25, 202687408849ILLevel 1Yes
Mar 25, 202687422837TXLevel 1Yes
Mar 25, 202687423876TXLevel 2Yes
Mar 25, 202687441903TXLevel 2Yes
Mar 25, 202687410609TXLevel 2No
Mar 24, 202687408533IALevel 1Yes
Mar 24, 202687395639NCLevel 1Yes
Mar 24, 202687408511IALevel 1Yes
Mar 24, 202687466950TXLevel 1Yes
Mar 24, 202687408534IALevel 1Yes
Mar 23, 202687386279TXLevel 1Yes
Mar 23, 202687383739NCLevel 1Yes
Mar 23, 202687453136IALevel 1Yes
Mar 20, 202687407335NMLevel 1Yes

Data sources & freshness

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