172.516C2 Citation: Placard Not Clear of Appurtenance

No. This violation will not result in an out-of-service order. Across our 13 million inspection records, the 172.516C2 citation has never resulted in a vehicle being placed out of service—0.0% OOS rate. For context, the national average across all FMCSR codes is 31.4%, so this is a minor infraction on the enforcement scale. You'll receive a citation and be allowed to continue operating.

No, this is one of the least serious placard violations. Our inspection data shows 172.516C2 has a 0.0% out-of-service rate. Compare that to peer placard codes: 177.817(a) General placarding violations sit at 75.1% OOS rate, and 177.817(e) Placard deteriorated/damaged at 5.2% OOS rate. This code ranks #1988 out of 3,036 FMCSR codes by enforcement volume—it's rare and treated lightly by inspectors.

First, inspect your placards to confirm they're fully visible and not blocked by mirrors, lights, door handles, or other truck equipment. Second, take a photo showing the placard clearly from all required angles. Third, review your hazmat loading procedures with your dispatcher—ensure placards are positioned before equipment is installed or secured. Finally, document the corrective action in case you need to dispute the citation. The data shows this typically co-occurs with deteriorated placards and vehicle condition issues, so a full equipment walk-around is prudent.

Very few. Our inspection records show 8 citations in the last 12 months, averaging less than one per month. In the last 90 days, there was only 1 citation nationwide. This is a low-frequency violation, which means most drivers never encounter it. When it does occur, it's usually caught during routine hazmat inspections, not as a primary safety finding.

Texas leads by a significant margin. In the last 180 days, our data shows 4 citations in Texas with a 0.0% out-of-service rate. No other state appears in the top enforcement list for this code during that period. If you're operating hazmat loads through Texas, ensure placards are clear of all appurtenances before inspection.

Yes, you can file a DataQs (FMCSA's National Consumer Complaint Database challenge) if you believe the citation is inaccurate. Since this is an equipment visibility issue—not a driver behavior finding—focus your contest on photos or video evidence showing the placard was clearly visible at the time of inspection. Provide documentation of the placard's position, lighting conditions, and camera angle used by the inspector. Success depends on the clarity of your counter-evidence.

This citation follows both. Under the FMCSA Compliance, Safety, Accountability (CSA) program, placard violations are recorded against the driver's record and the carrier's safety profile. The violation will appear in your carrier's hazardous materials compliance history, which can affect insurance premiums and customer audits. Correct the violation immediately and ensure your dispatcher confirms placard clearance before every hazmat load.

Low urgency for immediate repair, but high urgency for the next load. Since this carries a 0.0% out-of-service rate, you're not grounded. However, before your next hazmat shipment, verify all placards clear any mirrors, lights, reflectors, or equipment. The citation itself is correctable on the spot—repositioning or securing the placard so it's fully visible resolves the violation for future inspections.