FMCSR 172.324(a) Citations: What Drivers Need to Know

No. Across our 13 million inspection records, 172.324(a) citations have resulted in zero out-of-service placements. The OOS rate for this code is 0.0%. However, this is significantly lower than the all-FMCSR average OOS rate of 31.4%, suggesting either the violation type is documentation-based rather than equipment-related, or inspectors typically issue warnings before escalating to vehicle-level enforcement. You may still face CSA points and carrier penalties, but your truck stays legal to operate.

First, photograph the citation and all supporting documentation the inspector provided. Second, contact your fleet's compliance team or driver manager immediately with the citation number and date. Third, review the specific requirement you allegedly violated—172.324(a) relates to hazardous materials regulations that may involve placarding, packaging, or documentation. Fourth, determine whether you need repairs, relabeling, or documentation correction. Our records show only 2 all-time citations nationally for this code, so your carrier's safety team may need to consult their hazmat compliance specialist rather than relying on standard procedures.

172.324(a) is among the least-cited hazmat codes. It ranks #2,651 of 3,036 FMCSR codes by citation volume, with only 2 all-time citations in our database. By comparison, similar hazmat violations like general loading/unloading (177.834A-HMC) have 3,954 citations with a 99.2% OOS rate, and placarding violations (177.817(a)) show 2,274 citations with 97.9% OOS rates. The rarity and zero OOS rate of 172.324(a) suggest it addresses a narrow compliance gap, but when cited, it warrants immediate attention to avoid repeat findings.

Yes. Any roadside inspection citation can be contested through the DataQs Review and Dispute Resolution (RDR) system if you have supporting documentation. Given that 172.324(a) is likely a documentation or procedural violation rather than an equipment defect, you'll have the strongest case if you can provide proof of compliance at the time of inspection—shipping papers, placards, emergency response information, or carrier authorization letters. File your DataQs RDR request within 90 days of the inspection. Work with your carrier's compliance team; they may already have corporate-level documentation that supports your dispute.

172.324(a) is extremely rare nationwide. Our inspection records show only 2 all-time citations for this code across all states. This means it's not concentrated in any particular region—you're unlikely to see it cited routinely anywhere. The two cited carriers were Curtis's Landscaping (USDOT 1117058) and Ace Transportation Inc (USDOT 3396641), each with a single citation. If you've been cited, your violation likely reflects a specific hazmat handling or documentation gap rather than a systemic enforcement priority in your area.

172.324(a) falls under hazardous materials regulation. While our data shows zero out-of-service placements for this code, peer violations in the same category show vastly different risk profiles: general loading/unloading violations (177.834(a)) carry 97.9% OOS rates, while placard maintenance violations (172.516(c)(6)) show only 1.6% OOS rates. This variation tells you that hazmat violations span documentation issues to vehicle-level safety failures. Review your hazmat training credentials, ensure all required placards are current and visible, and confirm your carrier has Emergency Response information accessible in the vehicle. Non-compliance in hazmat carries steep penalties.

Hazmat violations like 172.324(a) can appear in both driver and carrier CSA records, depending on context. If the violation was your direct action—improper loading, missing documentation in your possession, or failure to verify hazmat paperwork—it lands on your driver record. If it reflects carrier-level failure—improper placarding procedures, inadequate hazmat training, or system-wide paperwork lapses—it appears on the carrier's record. Your individual citation will be tied to the specific inspection. Request clarification from your carrier's compliance department to understand whether this citation affects your driving record or their safety rating.

No. Enforcement of 172.324(a) is not trending upward. Our records show zero citations in the last 90 days and zero in the last 12 months, with only 2 all-time citations in our 13 million-record database. This suggests either the violation is extremely rare or regulatory focus has moved to more frequently cited hazmat codes. Compare this to peer codes like 177.834A-HMC (3,954 citations) or 177.817(a) (2,274 citations), which show consistent enforcement. Your concern should be broader hazmat compliance training and systems, not this specific code.