TruckCodex

393.91 — 393.91

FMCSA violation code under Vehicle Maintenance. 128 events recorded in roadside inspections. Severity weight: N/A.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
128
Code
393.91
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
N/A
Violation Group
—
Total Events
128
Carriers Cited
99

About This Violation Code

Code 393.91 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 393.91 in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
128
OOS Events
68
OOS Rate
53.1%
Top State (180d)
—

Top Carriers Cited

Ranked by frequency • 99 carriers total • Page 1 of 4

Top Carriers with 393.91 Violations

Showing 25 of 99

fmcsa-violations
Top Carriers with 393.91 Violations
#CarrierUSDOT# Violations
#1AMERICAN TRANSPORTATION SYSTEMS11512284
#2KINGS CANYON UNIFIED SCHOOL DIST26078034
#3LUTHERAN SECONDARY SCHOOL OF CLARK COUNTY14398243
#4WINDSTAR LINES INC6082243
#5SHORELINE UNIFIED SCHOOL DISTRICT26453853
#6COACH QUARTERS ENTERTAINMENT TRANSPORTATION LLC16556603
#7IMMANUEL SCHOOLS26480542
#8NEW JERSEY TRANSIT CORPORATION742932
#9HILL-ROM LOGISTICS LLC18353622
#10NOAHS ARK ADVENTURE CO8909652
#11EJECUTIVO ENTERPRISES INC38354042
#12FREMONT UNIFIED SCHOOL DISTRICT28097602
#13JPH INTERNATIONAL INC17673882
#14GROUND TRAVEL SPECIALIST INC14080932
#15ANTIOCH UNIFIED SCHOOL DISTRICT28097272
#16DELAWARE VALLEY CORPORATE SEDAN INC33929712
#17JEFFERSON PARTNERS LP1167632
#18FOWLER UNIFIED SCHOOL DISTRICT28100162
#19CHICAGO MOTOR COACH INC16555242
#20LIBERTY UNION HIGH SCHOOL DISTRICT26567322
#21ATLANTIC COAST CHARTERS INC2523352
#22MORGAN HILL UNIFIED SCHOOL DISTRICT28068801
#23D'LOAIZA BUS TRANSPORTATION INC21816191
#24OWL BUS INC32931051
#25BRINT ELECTRIC INC11711051

Recent Inspections

Latest inspections where 393.91 was cited • 128 total events • Page 1 of 6

Recent Inspections with 393.91

Showing 25 of 128

fmcsa-inspections
Recent Inspections with 393.91
DateReport #StateLevelOOS
Oct 8, 202482905908MNLevel 5No
Sep 25, 202482811844MNLevel 1No
Sep 19, 202482730113USLevel 1No
Aug 31, 202482558011IALevel 2Yes
Aug 29, 202482534324NHLevel 2No
Aug 27, 202482518366USLevel 5No
Aug 26, 202482501874CALevel 5Yes
Aug 24, 202482475369USLevel 2Yes
Aug 21, 202482454605USLevel 5No
Aug 20, 202482461033PALevel 2No
Aug 20, 202482449913CALevel 5No
Aug 19, 202482472221CALevel 5Yes
Aug 19, 202482427474CALevel 5Yes
Aug 14, 202482412163USLevel 5No
Aug 14, 202482383321NVLevel 5Yes
Aug 14, 202482412166USLevel 5No
Aug 13, 202482410983CALevel 5Yes
Aug 7, 202482329147CALevel 5No
Aug 6, 202482353028AZLevel 1No
Aug 2, 202482290389CALevel 5No
Aug 2, 202482330950NYLevel 2No
Aug 2, 202482290328CALevel 5No
Jul 17, 202482272697USLevel 5No
Jul 14, 202482118789IALevel 1No
Jul 11, 202482095885NVLevel 5Yes

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
ToolSearch Carriers
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