392.22(a) — Emergency warning devices not displayed
FMCSA violation code under Vehicle Maintenance. 5,302 events recorded in roadside inspections. Severity weight: 4.
Violation Description
Stopped CMV not equipped with or failing to display required warning devices (triangles/flares).
About This Violation Code
Code 392.22(a) falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS). It carries a severity weight of 4 (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 392.22 in the Federal Motor Carrier Safety Regulations.
Top Carriers Cited
Ranked by frequency • 3,857 carriers total • Page 1 of 155
Top Carriers with 392.22(a) Violations
Showing 25 of 3,857
| # | Carrier | USDOT | # Violations |
|---|---|---|---|
| #1 | NEW PRIME INC | 3706 | 53 |
| #2 | J B HUNT TRANSPORT INC | 80806 | 23 |
| #3 | SWIFT TRANSPORTATION CO OF ARIZONA LLC | 54283 | 23 |
| #4 | US XPRESS INC | 303024 | 22 |
| #5 | KLLM TRANSPORT SERVICES LLC | 154237 | 18 |
| #6 | MARTEN TRANSPORT LTD | 74432 | 17 |
| #7 | WESTERN EXPRESS INC | 511412 | 17 |
| #8 | CRETE CARRIER CORPORATION | 73705 | 15 |
| #9 | WERNER ENTERPRISES INC | 53467 | 15 |
| #10 | RE GARRISON TRUCKING INC | 95610 | 14 |
| #11 | SPIRIT TRUCK LINES LLC | 437028 | 13 |
| #12 | HEARTLAND EXPRESS INC OF IOWA | 134697 | 12 |
| #13 | P&S TRANSPORTATION LLC | 1243338 | 12 |
| #14 | WILEY SANDERS TRUCK LINES INC | 122275 | 11 |
| #15 | TRANSAM TRUCKING INC | 315503 | 11 |
| #16 | FORZA TRANSPORTATION SERVICES INC | 2490721 | 11 |
| #17 | DH TRANSPORTATION INC | 2134984 | 11 |
| #18 | NATIONAL CARRIERS INC | 69310 | 11 |
| #19 | SCHNEIDER NATIONAL CARRIERS INC | 264184 | 10 |
| #20 | CONTRACT FREIGHTERS INC | 70289 | 10 |
| #21 | DEALERS CHOICE TRUCKAWAY SYSTEM INC | 255166 | 10 |
| #22 | ANNETT HOLDINGS INC | 87409 | 9 |
| #23 | S & B TRUCKING LLC | 2502164 | 9 |
| #24 | TM TRANSPORTATION SERVICES LLC | 2252295 | 8 |
| #25 | EPES TRANSPORT SYSTEM LLC | 120195 | 8 |
Recent Inspections
Latest inspections where 392.22(a) was cited • 5,302 total events • Page 1 of 213
Recent Inspections with 392.22(a)
Showing 25 of 5,302
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Oct 11, 2024 | 82911506 | PA | Level 2 | No |
| Oct 11, 2024 | 82887996 | IA | Level 3 | No |
| Oct 10, 2024 | 82879658 | IA | Level 3 | No |
| Oct 10, 2024 | 82879660 | IA | Level 3 | No |
| Oct 10, 2024 | 82888009 | IA | Level 3 | No |
| Oct 10, 2024 | 82888008 | IA | Level 3 | No |
| Oct 10, 2024 | 82888412 | PA | Level 1 | No |
| Oct 10, 2024 | 82887913 | IA | Level 3 | No |
| Oct 8, 2024 | 82868494 | NM | Level 2 | No |
| Oct 8, 2024 | 82868780 | IA | Level 3 | No |
| Oct 8, 2024 | 82868781 | IA | Level 3 | No |
| Oct 7, 2024 | 82847014 | AL | Level 2 | No |
| Oct 6, 2024 | 82847906 | IA | Level 3 | No |
| Oct 3, 2024 | 82835585 | IA | Level 3 | No |
| Oct 3, 2024 | 82832224 | VA | Level 3 | No |
| Oct 3, 2024 | 82832222 | VA | Level 3 | No |
| Oct 2, 2024 | 82834743 | LA | Level 3 | No |
| Oct 1, 2024 | 82803728 | AL | Level 3 | No |
| Oct 1, 2024 | 82803762 | AL | Level 3 | No |
| Oct 1, 2024 | 82825009 | LA | Level 3 | No |
| Sep 30, 2024 | 82804409 | LA | Level 3 | No |
| Sep 30, 2024 | 82804389 | LA | Level 3 | No |
| Sep 30, 2024 | 82804234 | LA | Level 3 | No |
| Sep 30, 2024 | 82804388 | LA | Level 3 | No |
| Sep 30, 2024 | 82804233 | LA | Level 3 | No |