393.55(b) — Coupling device/towing methods defective
FMCSA violation code under Vehicle Maintenance. 2,804 events recorded in roadside inspections. Severity weight: 8.
Violation Description
Coupling devices or towing methods on commercial motor vehicle are defective or inadequate.
About This Violation Code
Code 393.55(b) 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 393.55 in the Federal Motor Carrier Safety Regulations.
Top Carriers Cited
Ranked by frequency • 2,486 carriers total • Page 1 of 100
Top Carriers with 393.55(b) Violations
Showing 25 of 2,486
| # | Carrier | USDOT | # Violations |
|---|---|---|---|
| #1 | UNITED PARCEL SERVICE INC | 21800 | 25 |
| #2 | VESTIS SERVICES LLC | 221707 | 10 |
| #3 | FEDERAL EXPRESS CORPORATION | 86876 | 9 |
| #4 | FIRST STUDENT INC | 354406 | 7 |
| #5 | WHITE TRANSIT SCHOOL BUSES INC | 953945 | 6 |
| #6 | MIGUEL ANGEL VILLEGAS ROJAS | 2396284 | 5 |
| #7 | LUIS ANGEL MIRANDA DE LA CRUZ | 3009091 | 5 |
| #8 | MORGAN SERVICES INC | 44591 | 5 |
| #9 | JUST TRUCKING DIRT INC | 3178076 | 5 |
| #10 | DKM LOGISTICA SA DE CV | 3118976 | 4 |
| #11 | JULIO CESAR CANTU RAMIREZ | 3362407 | 4 |
| #12 | JAY'S BUS SERVICE INC | 1926134 | 4 |
| #13 | CLAUDIA GONZALEZ CHAVEZ | 3311913 | 4 |
| #14 | JOSE ELOY SANCHEZ TAPIA | 2475130 | 4 |
| #15 | GABRIEL GARCIA ORTEGA | 2260592 | 4 |
| #16 | COCOLAMUS CREEK DISPOSAL SERVICE INC | 2103033 | 4 |
| #17 | CALLAHEAD CORP | 1562267 | 4 |
| #18 | EDWIN & SONS HOME IMPROVEMENT CORP | 3135622 | 4 |
| #19 | USA BUS SERVICE INC | 3119643 | 4 |
| #20 | UNIFIRST CORPORATION | 63904 | 4 |
| #21 | SVM TRUCKING LLC | 2897014 | 3 |
| #22 | JUAN ANTONIO RAMIREZ VAZQUEZ | 1631665 | 3 |
| #23 | ARSENIO ELIZONDO QUIROGA | 3023987 | 3 |
| #24 | JOZ TOWING LLC | 2965256 | 3 |
| #25 | ALIMENTS INC | 3434528 | 3 |
Recent Inspections
Latest inspections where 393.55(b) was cited • 2,804 total events • Page 1 of 113
Recent Inspections with 393.55(b)
Showing 25 of 2,804
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Oct 15, 2024 | 82909660 | AL | Level 2 | No |
| Oct 15, 2024 | 82907119 | NY | Level 1 | No |
| Oct 14, 2024 | 82898311 | MD | Level 2 | No |
| Oct 11, 2024 | 82906177 | US | Level 1 | No |
| Oct 11, 2024 | 82897332 | UT | Level 1 | No |
| Oct 11, 2024 | 82906305 | US | Level 1 | No |
| Oct 11, 2024 | 82907400 | SC | Level 1 | No |
| Oct 10, 2024 | 82892272 | PA | Level 1 | No |
| Oct 10, 2024 | 82888572 | PA | Level 1 | No |
| Oct 10, 2024 | 82907319 | US | Level 1 | No |
| Oct 10, 2024 | 82907484 | US | Level 1 | No |
| Oct 10, 2024 | 82908049 | NY | Level 1 | No |
| Oct 10, 2024 | 82906286 | NY | Level 1 | No |
| Oct 10, 2024 | 82876930 | US | Level 1 | No |
| Oct 9, 2024 | 82879728 | IA | Level 1 | No |
| Oct 9, 2024 | 82865943 | MO | Level 1 | No |
| Oct 9, 2024 | 82873136 | GA | Level 1 | No |
| Oct 8, 2024 | 82873552 | SC | Level 2 | No |
| Oct 8, 2024 | 82870062 | PA | Level 1 | No |
| Oct 8, 2024 | 82868857 | IL | Level 1 | No |
| Oct 8, 2024 | 82866843 | MD | Level 1 | No |
| Oct 8, 2024 | 82891195 | GA | Level 1 | No |
| Oct 8, 2024 | 82905084 | NY | Level 1 | No |
| Oct 7, 2024 | 82854256 | US | Level 1 | No |
| Oct 7, 2024 | 82897062 | NY | Level 2 | No |