173.40 — 173.40
FMCSA violation code under Hazardous Materials. 1 events recorded in roadside inspections. Severity weight: N/A.
About This Violation Code
Code 173.40 falls under the Hazardous Materials BASIC category in FMCSA's Safety Measurement System (SMS).
When this violation is cited during a roadside inspection, it contributes to the carrier's Hazardous Materials 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 173.40 in the Federal Motor Carrier Safety Regulations.
Top Enforcing States
Where 173.40 is most commonly cited (last 180 days)
Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.
Citation Trend (12 months)
Monthly count of 173.40 citations. Red bars mark months with OOS-triggering citations.
Top Carriers Cited
Ranked by frequency • 1 carriers total
Top Carriers with 173.40 Violations
| # | Carrier | USDOT | # Violations |
|---|---|---|---|
| #1 | ERENDIRA BERENICE VAZQUEZ LOPEZ | 2255788 | 1 |
Recent Inspections
Latest inspections where 173.40 was cited • 1 total events
Recent Inspections with 173.40
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Nov 8, 2025 | 86284504 | TX | Level 3 | No |