TruckCodex

393.70D8 — Coupling devices defective

FMCSA violation code under Vehicle Maintenance. 102 events recorded in roadside inspections. Severity weight: 8.

Severity Weight
8
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
102
Code
393.70D8
Code System
FMCSR
BASIC Category
Vehicle Maintenance
OOS Eligible
No
Severity Weight
8
Violation Group
—
Total Events
102
Carriers Cited
102

Violation Description

Coupling devices and towing methods are defective, including fifth wheel, kingpin, pintle hook, and drawbar.

About This Violation Code

Code 393.70D8 falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 8 (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 393.70D8 in the Federal Motor Carrier Safety Regulations.

View on eCFR.gov →FMCSA Violations Search →
Events (all time)
102
OOS Events
43
OOS Rate
42.2%
Top State (180d)
Illinois
13 events

Top Enforcing States

Where 393.70D8 is most commonly cited (last 180 days)

1.Illinois
13
OOS 23.1%
2.Texas
5
OOS 20.0%
3.North Carolina
2
OOS 100.0%
4.Iowa
1
OOS 0.0%
5.New Mexico
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 393.70D8 citations. Red bars mark months with OOS-triggering citations.

3
Apr
7
May
9
Jun
6
Jul
2
Aug
5
Sep
7
Oct
3
Nov
3
Dec
8
Jan
4
Feb
2
Mar

Most Active Stations

Inspection stations citing 393.70D8 most often (last 180 days)

1.020 - MARION - I-57 S/B
1
OOS 0.0%
2.242 - INTERSTATE 55
1
OOS 0.0%
3.57
1
OOS 100.0%
4.I-55
1
OOS 0.0%
5.I-64
1
OOS 0.0%
6.I-80 EB
1
OOS 100.0%
7.IL-13
1
OOS 0.0%
8.INTERSTATE
1
OOS 0.0%
9.US-45
1
OOS 0.0%
10.LUMBERTON WEIGH STATION, I-95,
1
OOS 100.0%

Often Cited Together

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

392.2RG8 co-occurrences393.95A7 co-occurrences393.75G-LOAD7 co-occurrences396.17C6 co-occurrences393.96 co-occurrences393.95F5 co-occurrences393.114 co-occurrences393.434 co-occurrences393.48A4 co-occurrences392.2DIM2 co-occurrences

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

Top Carriers Cited

Ranked by frequency • 102 carriers total • Page 1 of 5

Top Carriers with 393.70D8 Violations

Showing 25 of 102

fmcsa-violations
Top Carriers with 393.70D8 Violations
#CarrierUSDOT# Violations
#1NORTHWEST CASCADE INCORPORATED7739751
#2PREMIER CONCRETE DESIGN41881461
#3CONTAINER COMPANIES LLC36449161
#4PLANT MAINTENANCE SERVICES LLC5552861
#5CTTV LLC25296341
#6GENARO GARCIA HERNANDEZ21417181
#7INSITUFORM TECHNOLOGIES USA LLC7991211
#8SOUTHERN TIRE MART LLC11575001
#9TRU-BILT FARM AND COMMERCIAL BUILDING COMPANY19417941
#10COOPER RESOURCES LLC30658461
#11WJ BURKE ELECTRIC COMPANY INC33169541
#12J B WILLIAMS CCS LLC34642571
#13VLAMARINE LOGISTICS INC43932971
#14ALLWAY TRANS LLC36928941
#15STX UNDERGROUND LLC36061191
#16TONDAN TRANSPORT INC37774181
#17SGL UTILITY CONTRACTORS LLC30711591
#18OUTDOORS LAWN AND LANDSCAPING CO16813691
#19ELASTEC INC20525991
#20J-R TRANSPORT SOLUTIONS LLC40112641
#21DM PRIME TRANSPORT INC42663941
#22DIRT DIGGERS EXCAVATION LLC20660041
#23VRZALIK SAND & GRAVEL INC20075851
#24SJ'S ROLL-OFF DUMPSTERS LLC43495251
#25NEVER ENOUGH PERFORMANCE INC29079731

Recent Inspections

Latest inspections where 393.70D8 was cited • 102 total events • Page 1 of 5

Recent Inspections with 393.70D8

Showing 25 of 102

fmcsa-inspections
Recent Inspections with 393.70D8
DateReport #StateLevelOOS
Mar 28, 202687453269IALevel 2No
Mar 10, 202687372230ILLevel 2No
Feb 12, 202687043252ILLevel 2No
Feb 11, 202687031616ILLevel 1No
Feb 5, 202687019588TXLevel 1No
Feb 5, 202686976360NCLevel 1Yes
Jan 28, 202686958332TXLevel 1No
Jan 23, 202686883849ILLevel 1No
Jan 20, 202686883114ILLevel 1No
Jan 19, 202686883140ILLevel 1Yes
Jan 16, 202686876830TXLevel 2No
Jan 14, 202686891066ILLevel 1Yes
Jan 8, 202686817698ILLevel 1No
Jan 7, 202686738526ILLevel 1No
Dec 10, 202586541293NCLevel 2Yes
Dec 8, 202586518370ILLevel 1No
Dec 2, 202586479465ILLevel 2No
Nov 26, 202586460304ILLevel 1Yes
Nov 18, 202586362420ILLevel 1No
Nov 5, 202586299699TXLevel 1No
Oct 21, 202586143298TXLevel 2Yes
Oct 21, 202586118277NMLevel 1No
Oct 17, 202586108862ILLevel 2No
Oct 16, 202586098969TXLevel 2Yes
Oct 13, 202586071974TXLevel 1No

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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