FMCSR 397.2: Hazmat Compliance Rules — Driver Q&A

No. Across our inspection records, 397.2 has never resulted in an out-of-service placement—the OOS rate is 0.0%. All 4 citations in our database were issued without removing the vehicle from service. That said, this is significantly better than peer hazmat violations: general loading/unloading hazmat codes (177.834A-HMC and 177.834(a)) carry OOS rates of 99.2% and 97.9% respectively, and placarding violations (177.817(a)) sit at 75.1%. Because 397.2 is an umbrella compliance requirement, inspectors may cite it alongside more specific hazmat violations that do trigger OOS.

397.2 is relatively rare and low-enforcement in the hazmat category. Our inspection records show only 4 citations all-time, ranking it #2480 out of 3,036 FMCSR codes nationally. By contrast, peer codes in the Hazardous Materials category are cited hundreds to thousands of times more frequently: 177.834A-HMC has 3,954 citations, 177.834(a) has 3,839, and placarding violations (177.817(a)) have 2,274. The 0.0% OOS rate on 397.2 is also far below the all-FMCSR average of 31.4%, suggesting inspectors use it as a technical citation rather than an acute safety threat.

First, review the specific violation noted on your citation—397.2 is a general compliance code that points to violations in FMCSR Parts 390–397. Identify which rules you allegedly violated (e.g., driver qualifications, vehicle maintenance, hazmat documentation). Second, gather documentation: licensing, medical certificate, vehicle maintenance records, hazmat training certificate, or shipping papers depending on the cited area. Third, contact your carrier's safety manager or compliance officer to review the inspection report. Fourth, decide whether to contest through DataQs if you believe the finding is factually incorrect or based on incomplete documentation. Do not ignore the citation.

The FMCSR violation point system (CSA severity) is not included in our inspection database. However, 397.2 is not an out-of-service-eligible violation, which typically signals lower severity than acute safety violations. To find the exact point value, check the Federal Motor Carrier Safety Administration's Safety Management Guidelines or contact your carrier's compliance department. Points are weighted by severity, and your CSA score is calculated as a rolling 24-month average. A single 397.2 citation is unlikely to cause major damage if your overall record is clean, but accumulated violations will.

Yes. You can dispute any roadside inspection citation through the FMCSA's DataQs (DataQ Records) system within 90 days of the inspection. You'll need the inspection report number and the specific basis for your challenge. If the inspector cited you for non-compliance with Parts 390–397 without identifying a concrete violation (e.g., missing a signature on a form, outdated hazmat training), you have grounds to contest on documentation or clerical grounds. If the finding is based on an inspector's judgment about your vehicle's condition or your procedures, the bar is higher but not impossible. Submit your rebuttal with supporting evidence (receipts, training records, vehicle maintenance logs).

Moderate urgency. While 397.2 has never resulted in an OOS placement in our 13 million+ inspection records, it signals an inspector found you non-compliant with hazmat rules in Parts 390–397. The specific issue determines urgency: missing hazmat training or an expired medical certificate is critical and must be fixed immediately; vehicle equipment defects or documentation errors can be resolved within a reasonable timeframe. Zero citations in the last 90 days suggest this code is rarely enforced, but that also means inspectors who cite it are seeing a real problem. Address the violation promptly to avoid repeat citations and potential escalation to more serious hazmat violations.

Our inspection records show 397.2 is cited very infrequently across all carriers. The four all-time citations are distributed among US CONTRACT TRUCKING LLC (USDOT 227640), CSI ACQUISITION COMPANY LLC (USDOT 1677598), EBELIO CHUN (USDOT 3545850), and VILLA CHENIA TRANSPORT LLC (USDOT 4178075)—one citation each. No carrier has been cited more than once, and no state concentration is evident. This low volume suggests the violation is either very uncommon or inspectors use more specific hazmat codes (like 177.834 or 177.817) instead. If you drive for a carrier with a hazmat operation, focus on preventive compliance: current training, complete paperwork, and vehicle inspections.

Our inspection database does not provide state-level breakdown for 397.2 citations. However, with only 4 citations all-time across 13 million+ inspections nationwide and zero citations in the last 90 days, 397.2 enforcement is extremely sparse everywhere. Hazmat enforcement is federally consistent but may be heavier in states with major freight corridors, ports, or borders (e.g., Texas, California, Arizona). If you transport hazmat, assume any state can cite you and maintain compliance across Parts 390–397 uniformly: valid hazmat endorsement, current training, proper placarding, and compliant vehicle maintenance.