FMCSR 172.331: Markings for Bulk Packages Q&A

Not automatically. Across our 13 million inspection records, 172.331 citations result in an out-of-service order 54.5% of the time—significantly higher than the all-FMCSR average of 31.4%. This means you have a better-than-even chance of staying in service, but you are at elevated risk. Whether you get placed OOS depends on the specific facts: the condition of the markings, what commodity was involved, and the inspector's judgment on safety impact. If you received a citation without an OOS order, document that immediately.

The statistics block does not include CSA point values or severity weights for this code. CSA points are assigned by FMCSA based on violation severity, vehicle type, and crash history, and vary by inspection. After citation, your carrier will receive the Safety and Fitness Electronic Subrogation (SAFER) record, which will show the exact point assignment. Contact your safety manager immediately to discuss the points and review your carrier's appeals strategy if warranted.

Take these immediate steps:

1. Request a detailed citation printout — ask for the specific marking defect and which package(s) were cited.
2. Photograph the load — if still on your truck, document the current state and markings.
3. Report to your carrier — within 24 hours; they may want to inspect for co-occurring placarding violations (172.504A and 180.340 appeared together in recent inspections).
4. Do not move the vehicle if OOS — moving an out-of-service vehicle is a federal violation.
5. Review your shipping documents — ensure labels and placards match the hazmat classifications on your bill of lading.

172.331 is on the less severe end of hazmat violations. Our data shows peer codes in the same category with dramatically higher OOS rates: placarding violations (177.817(a)) reach 75.1% OOS rate, and general loading violations (177.834A) spike to 99.2%. By contrast, 172.331's 54.5% OOS rate and only 33 all-time citations (ranked #1763 of 3,036 codes) suggest inspectors treat this as a lower-frequency, moderate-severity defect. Still, the OOS rate is 23 percentage points above average, so it merits prompt attention.

Yes, you can file a DataQs (Database Quality System) challenge with FMCSA if you believe the citation is factually incorrect or violates your due process rights. Markings violations like 172.331 are observable, equipment-based findings—easier to contest if the marking was actually present, readable, and compliant at the time of inspection. Gather photos, driver logs, and any maintenance records. Your carrier's safety manager or a compliance consultant can help file the formal challenge. DataQs disputes are reviewed by FMCSA headquarters within 30 days.

Over the last 180 days, Texas accounts for 4 citations with a 50.0% out-of-service rate. No other state appears in the top citation list for this code, reflecting how rare 172.331 citations are nationwide. Our inspection database shows only 12 citations in the last 12 months and just 1 in the last 90 days, making this one of the least-cited FMCSR violations. If you operate primarily in Texas with bulk hazmat loads, flag this code in your safety training.

Moderate to high. The 54.5% OOS rate means you face real risk of being pulled out of service on the next inspection if the marking issue persists. Recent citation volume is low—only 1 citation in the last 90 days—which could indicate inspectors are less frequently checking this specific requirement, or that compliance is improving. However, do not assume lenience. Repair or correct markings before your next haul. If placed OOS, you cannot legally operate until FMCSA or a qualified inspector verifies compliance and issues an out-of-service release.

The citation is recorded against your carrier's DOT safety profile in the SAFER database, not your personal CDL record. However, it may appear in your inspection history as an individual driver if you were operating the vehicle at the time. Your carrier's CSA scores and safety ratings are affected, which can impact insurance costs, customer audits, and hiring decisions. Both you and your carrier have an interest in resolution: you want a clean record, and your carrier wants to protect its FMCSA ratings. Work with your safety manager on a corrective action plan.