172.516C2 — Placard not clear of appurtenance
FMCSA violation code under Hazardous Materials. 18 events recorded in roadside inspections. Severity weight: N/A.
Violation Description
Placard not clear of appurtenance
About This Violation Code
Code 172.516C2 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 172.516C2 in the Federal Motor Carrier Safety Regulations.
Top Enforcing States
Where 172.516C2 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 172.516C2 citations. Red bars mark months with OOS-triggering citations.
Most Active Stations
Inspection stations citing 172.516C2 most often (last 180 days)
Often Cited Together
Other violations commonly found on the same inspection (last 90 days)
Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).
Top Carriers Cited
Ranked by frequency • 18 carriers total
Top Carriers with 172.516C2 Violations
| # | Carrier | USDOT | # Violations |
|---|---|---|---|
| #1 | PREFERRED PETROLEUM SERVICES INC | 2159407 | 1 |
| #2 | FORCE ENERGY SERVICES LLC | 4215325 | 1 |
| #3 | PBI INTERNATIONAL LLC | 3541586 | 1 |
| #4 | HARRIS COUNTY PROFESSIONAL GASES INC | 1934501 | 1 |
| #5 | SPECIALIZED INTERNATIONAL TRANSPORT LLC | 4195971 | 1 |
| #6 | AKNA TRANSPORTES S DE RL DE CV | 1856796 | 1 |
| #7 | CD FUELS LLC | 3572229 | 1 |
| #8 | AEG PETROLEUM LLC | 2917972 | 1 |
| #9 | LONEWOLF PETROLEUM CO | 2804031 | 1 |
| #10 | TRANSWORLD XPRESS INC | 2526047 | 1 |
| #11 | ESTES EXPRESS LINES | 121018 | 1 |
| #12 | HEARTBREAK TRUCKING LLC | 3056909 | 1 |
| #13 | POWER FUEL TRANSPORT LLC | 4129688 | 1 |
| #14 | MIDSTREAM TRANSPORTATION COMPANY | 2497677 | 1 |
| #15 | GETAWELDERCOM INC | 3026045 | 1 |
| #16 | ANYTIME FUEL PROS LLC | 1939361 | 1 |
| #17 | SAIA MOTOR FREIGHT LINE LLC | 29124 | 1 |
| #18 | WESTERN INTERNATIONAL GAS & CYLINDERS INC | 511553 | 1 |
Recent Inspections
Latest inspections where 172.516C2 was cited • 18 total events
Recent Inspections with 172.516C2
| Date | Report # | State | Level | OOS |
|---|---|---|---|---|
| Mar 6, 2026 | 87323846 | TX | Level 2 | No |
| Dec 18, 2025 | 86632664 | TX | Level 2 | No |
| Dec 15, 2025 | 86617683 | TX | Level 2 | No |
| Dec 2, 2025 | 86519641 | TX | Level 1 | No |
| Aug 14, 2025 | 85533376 | TX | Level 2 | No |
| Jul 10, 2025 | 85223649 | TX | Level 1 | No |
| Jul 9, 2025 | 86097084 | TX | Level 2 | No |
| Jun 6, 2025 | 84914972 | TX | Level 1 | No |
| Mar 27, 2025 | 84275143 | TX | Level 2 | No |
| Feb 28, 2025 | 84015590 | TX | Level 2 | No |
| Feb 28, 2025 | 84016069 | TX | Level 1 | No |
| Feb 24, 2025 | 83973308 | TX | Level 2 | No |
| Jan 11, 2025 | 83590935 | IA | Level 2 | No |
| Dec 23, 2024 | 83500948 | TX | Level 2 | No |
| Dec 19, 2024 | 83451916 | TX | Level 1 | No |
| Dec 12, 2024 | 83439993 | TX | Level 1 | No |
| Nov 14, 2024 | 83206565 | TX | Level 2 | No |
| Mar 12, 2024 | 81109713 | TX | Level 1 | No |