393.70C — Coupling devices defective

FMCSA violation code under Vehicle Maintenance. 56 events recorded in roadside inspections. Severity weight: 8.

Severity Weight
8
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
56
Code
393.70C
Code System
FMCSR
BASIC Category
OOS Eligible
No
Severity Weight
8
Violation Group
Total Events
56
Carriers Cited
53

Violation Description

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

About This Violation Code

Code 393.70C 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 393.70C in the Federal Motor Carrier Safety Regulations.

Events (all time)
56
OOS Events
42
OOS Rate
75.0%
Top State (180d)
North Carolina
7 events

Top Enforcing States

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

1.North Carolina
7
OOS 85.7%
2.Texas
5
OOS 40.0%
3.Iowa
1
OOS 100.0%
4.Illinois
1
OOS 100.0%
5.New Mexico
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 393.70C citations. Red bars mark months with OOS-triggering citations.

1
Apr
2
May
3
Jul
3
Aug
6
Sep
5
Oct
4
Nov
3
Dec
2
Jan
2
Feb
2
Mar

Most Active Stations

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

1.PHARR POE
2
OOS 0.0%
2.NA
1
OOS 100.0%
3.24
1
OOS 100.0%
4.DAVIE COUNTY I-40 E
1
OOS 100.0%
7.I40
1
OOS 100.0%

Often Cited Together

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

Top Carriers Cited

Ranked by frequency • 53 carriers total • Page 1 of 3

Recent Inspections

Latest inspections where 393.70C was cited • 56 total events • Page 1 of 3

Recent Inspections with 393.70C

Showing 25 of 56

fmcsa-inspections
Recent Inspections with 393.70C
DateReport #StateLevelOOS
Mar 31, 202687460177NCLevel 1Yes
Mar 19, 202687441639TXLevel 1No
Feb 23, 202687189785NMLevel 1Yes
Feb 17, 202687087363NCLevel 1Yes
Jan 20, 202686866199TXLevel 1Yes
Jan 7, 202686780348TXLevel 1Yes
Dec 20, 202586630264NCLevel 1No
Dec 10, 202586541462NCLevel 1Yes
Dec 9, 202586528284NCLevel 2Yes
Nov 11, 202586313799ILLevel 1Yes
Nov 11, 202586323084TXLevel 2No
Nov 5, 202586254845NCLevel 1Yes
Nov 4, 202586246491TXLevel 1No
Oct 25, 202586180485IALevel 1Yes
Oct 24, 202586168385NCLevel 2Yes
Oct 15, 202586096974TXLevel 2Yes
Oct 6, 202585980647NCLevel 1Yes
Oct 1, 202585938005NCLevel 1Yes
Sep 29, 202585953183TXLevel 2Yes
Sep 29, 202585928809IALevel 2No
Sep 15, 202585815845TXLevel 2Yes
Sep 10, 202585780867TXLevel 1Yes
Sep 10, 202585747899NCLevel 2Yes
Sep 2, 202585736414ILLevel 2Yes
Aug 27, 202585656773TXLevel 1No

Data sources & freshness

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