TruckCodex

393.83B — Exhaust - Discharging below the fuel tank or filler pipe

FMCSA violation code under Vehicle Maintenance. 114 events recorded in roadside inspections. Severity weight: N/A.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
114
Code
393.83B
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
N/A
Violation Group
—
Total Events
114
Carriers Cited
111

Violation Description

Exhaust - Discharging below the fuel tank or filler pipe

About This Violation Code

Code 393.83B 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 393.83B in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
114
OOS Events
23
OOS Rate
20.2%
Top State (180d)
Texas
20 events

Top Enforcing States

Where 393.83B is most commonly cited (last 180 days)

1.Texas
20
OOS 35.0%
2.California
2
OOS 0.0%
3.Indiana
1
OOS 0.0%
4.Minnesota
1
OOS 0.0%
5.Mississippi
1
OOS 0.0%
6.New Hampshire
1
OOS 0.0%
7.New Jersey
1
OOS 0.0%
8.Nevada
1
OOS 0.0%
9.New York
1
OOS 0.0%
10.Ohio
1
OOS 0.0%
11.US
1
OOS 0.0%
12.Alabama
1
OOS 0.0%
13.Washington
1
OOS 0.0%
14.Connecticut
1
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 393.83B citations. Red bars mark months with OOS-triggering citations.

1
Apr
6
May
8
Jun
7
Jul
5
Aug
2
Sep
9
Oct
3
Nov
3
Dec
9
Jan
7
Feb
10
Mar

Most Active Stations

Inspection stations citing 393.83B most often (last 180 days)

1.VETERANS POE
3
OOS 0.0%
2.COLUMBIA POE
3
OOS 66.7%
3.PHARR POE
2
OOS 50.0%
4.INDIOS POE
2
OOS 0.0%
5.EAST GRAND FORKS MN
1
OOS 0.0%
6.LAMAR COUNTY
1
OOS 0.0%
7.RAINBOW IF
1
OOS 0.0%
8.FALLON
1
OOS 0.0%
9.CROWN POINT IN
1
OOS 0.0%
10.NJ
1
OOS 0.0%

Often Cited Together

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

392.2RG9 co-occurrences393.99 co-occurrences393.45B2UV8 co-occurrences393.48A7 co-occurrences393.48A-BIHE6 co-occurrences393.42A-BM6 co-occurrences396.3A1-HCM5 co-occurrences396.5B5 co-occurrences393.47E5 co-occurrences393.95A4 co-occurrences

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

Top Carriers Cited

Ranked by frequency • 111 carriers total • Page 1 of 5

Top Carriers with 393.83B Violations

Showing 25 of 111

fmcsa-violations
Top Carriers with 393.83B Violations
#CarrierUSDOT# Violations
#1JOSE LUIS DELGADO CASTILLO10647572
#2TRANSPORTES NARI SA DE CV31301072
#3BUNDY HAULING28713892
#4K AND J LINDGREN TRUCKING INC15936911
#5VAUGHN TIMBER LLC32786741
#6DDS TRUCKING INC29081611
#7SEPTIC WARRIORS LLC43332471
#8AUTOTRANSPORTES VARELA DAVILA SA DE CV17168241
#9SAGA INTERNATIONAL TRANSPORTATION LLC34784111
#10ROMERO TRANSPORT LLC27656191
#11HUGO VIRAMONTES21326791
#12TRANSPORTES ARLEQUIN SA DE CV18796221
#13TONEY WAYNE ANGLE JR36476501
#14LOAD SMART TRUCKING INC24248221
#15GUEROS TRANSPORT INC35858351
#16SYNC TRANSPORT LLC30840511
#17RICHARD E TOMLISON9879091
#18HARD HAULING LLC39671071
#19TRI-STATE DRILLING LLC1249731
#20BORDERFREIGHT LOGISTICS LLC15876721
#21J & P GONZALEZ LLC25314971
#22SANDERSON FARMS LLC791271
#23RDM TRANSPORT LLC43311031
#24NEW ERA HAULERS LLC38634021
#25MONTE LARSON24747941

Recent Inspections

Latest inspections where 393.83B was cited • 114 total events • Page 1 of 5

Recent Inspections with 393.83B

Showing 25 of 114

fmcsa-inspections
Recent Inspections with 393.83B
DateReport #StateLevelOOS
Mar 27, 202687478934TXLevel 1No
Mar 26, 202687428293OHLevel 2No
Mar 21, 202687397202TXLevel 1No
Mar 19, 202687344414TXLevel 2Yes
Mar 18, 202687386016TXLevel 1Yes
Mar 15, 202687367550NJLevel 2No
Mar 11, 202687274139MSLevel 3No
Mar 11, 202687320011MNLevel 2No
Mar 10, 202687298562ALLevel 1No
Mar 10, 202687258106USLevel 1No
Feb 26, 202687216116TXLevel 2No
Feb 19, 202687117269TXLevel 1No
Feb 19, 202687153730TXLevel 2No
Feb 16, 202687102488TXLevel 1Yes
Feb 16, 202687102593TXLevel 1No
Feb 5, 202687044902TXLevel 2No
Feb 3, 202686980187TXLevel 1Yes
Jan 22, 202686878141CALevel 1No
Jan 22, 202686874243NYLevel 1No
Jan 22, 202686875004INLevel 2No
Jan 19, 202686867865TXLevel 1No
Jan 14, 202686819781TXLevel 2No
Jan 12, 202686793392TXLevel 1Yes
Jan 7, 202686781699TXLevel 1No
Jan 7, 202686740859TXLevel 2Yes

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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