TruckCodex

396.3A1-BARS — Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch

FMCSA violation code under Vehicle Maintenance. 2,662 events recorded in roadside inspections. Severity weight: N/A.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
2,662
Code
396.3A1-BARS
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
N/A
Violation Group
—
Total Events
2,662
Carriers Cited
2,205

Violation Description

Air Brake - Air reservoir separated from its original attachment points or moving more than 1 inch

About This Violation Code

Code 396.3A1-BARS 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 396.3A1 in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
2,662
OOS Events
1,783
OOS Rate
67.0%
Top State (180d)
California
410 events

Top Enforcing States

Where 396.3A1-BARS is most commonly cited (last 180 days)

1.California
410
OOS 39.0%
2.US
65
OOS 100.0%
3.Missouri
33
OOS 100.0%
4.Kentucky
31
OOS 25.8%
5.Oklahoma
26
OOS 73.1%
6.Utah
18
OOS 100.0%
7.New York
17
OOS 100.0%
8.Pennsylvania
16
OOS 68.8%
9.Ohio
13
OOS 100.0%
10.Michigan
12
OOS 100.0%
11.Colorado
12
OOS 100.0%
12.Georgia
11
OOS 100.0%
13.Louisiana
10
OOS 100.0%
14.Washington
10
OOS 100.0%
15.Arizona
9
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 396.3A1-BARS citations. Red bars mark months with OOS-triggering citations.

76
Apr
166
May
126
Jun
187
Jul
174
Aug
160
Sep
193
Oct
126
Nov
128
Dec
141
Jan
132
Feb
163
Mar
8
Apr

Most Active Stations

Inspection stations citing 396.3A1-BARS most often (last 180 days)

1.DESERT HILLS IF
110
OOS 27.3%
2.OTAY MESA IF
46
OOS 21.7%
3.CHOWCHILLA RIVER IF
42
OOS 45.2%
4.MT. PASS IF
33
OOS 9.1%
5.PHARR TX
31
OOS 100.0%
6.GRAPEVINE IF
24
OOS 50.0%
7.LONDON
22
OOS 27.3%
8.CALEXICO IF
21
OOS 9.5%
9.SIDEWINDER PLATFORM SCALE
13
OOS 23.1%
10.LAREDO TX
13
OOS 100.0%

Often Cited Together

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

393.47E111 co-occurrences393.53B-B61 co-occurrences393.75A3-TAOL60 co-occurrences393.45D-B49 co-occurrences396.3A1-BOS45 co-occurrences393.45B2-B-AIR44 co-occurrences396.5B-L36 co-occurrences393.55E-B36 co-occurrences396.5B-HWSL35 co-occurrences393.45B2-BHTD34 co-occurrences

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

Top Carriers Cited

Ranked by frequency • 2,205 carriers total • Page 1 of 89

Top Carriers with 396.3A1-BARS Violations

Showing 25 of 2,205

fmcsa-violations
Top Carriers with 396.3A1-BARS Violations
#CarrierUSDOT# Violations
#1SCHNEIDER NATIONAL CARRIERS INC26418416
#2KNIGHT TRANSPORTATION INC42882316
#3SWIFT TRANSPORTATION CO OF ARIZONA LLC5428315
#4WESTERN EXPRESS INC51141214
#5WERNER ENTERPRISES INC5346712
#6CENTRAL TRANSPORT LLC66117311
#7J B HUNT TRANSPORT INC8080611
#8COVENANT TRANSPORT LLC27381810
#9TFORCE FREIGHT INC1210589
#10UNITED PARCEL SERVICE INC218009
#11US XPRESS INC3030248
#12FEDERAL EXPRESS CORPORATION868767
#13GURMAN TRUCKING INC12442076
#14SANDRA PATRICIA CASANOVA GUILLEN9255816
#15PRODUCTORA AGRICOLA IND DEL NOROESTE SA DE CV5592946
#16HEARTLAND EXPRESS INC OF IOWA1346976
#17GREENWOOD MOTOR LINES INC633916
#18DAVID ALBERTO DAMKEN GUERRERO40332436
#19WC LOGISTICS INC9921425
#20EBI TRANSFERS SA DE CV31879875
#21SANCHOTENA EXPRESS INC6357735
#22SAIA MOTOR FREIGHT LINE LLC291245
#23LOGISTICA INTEGRAL LA LLC27915794
#24TALAMANTES TRUCKING S DE RL DE CV15343984
#25MIGUEL ANGEL VELASCO8439174

Recent Inspections

Latest inspections where 396.3A1-BARS was cited • 2,662 total events • Page 1 of 107

Recent Inspections with 396.3A1-BARS

Showing 25 of 2,662

fmcsa-inspections
Recent Inspections with 396.3A1-BARS
DateReport #StateLevelOOS
Apr 2, 202687487013WYLevel 1Yes
Apr 2, 202687476895KYLevel 1No
Apr 2, 202687481259CALevel 1No
Apr 2, 202687488917CALevel 1Yes
Apr 1, 202687477986MILevel 1Yes
Apr 1, 202687480122CALevel 1No
Apr 1, 202687480123CALevel 1No
Apr 1, 202687459667KYLevel 1No
Mar 31, 202687451091LALevel 1Yes
Mar 31, 202687478640WYLevel 1No
Mar 31, 202687481793OHLevel 2Yes
Mar 31, 202687454203CTLevel 2Yes
Mar 30, 202687469400CALevel 1No
Mar 30, 202687454046WYLevel 1No
Mar 30, 202687445419CALevel 2Yes
Mar 30, 202687469385CALevel 1No
Mar 27, 202687418686KYLevel 1No
Mar 26, 202687481442MDLevel 1Yes
Mar 26, 202687424641CALevel 1Yes
Mar 26, 202687425340CALevel 1Yes
Mar 26, 202687443515CALevel 1No
Mar 26, 202687445488CALevel 2Yes
Mar 26, 202687426780COLevel 1Yes
Mar 26, 202687425957KSLevel 2Yes
Mar 26, 202687408375OKLevel 1Yes

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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