Direct answers on 172.310B hazmat violations: out-of-service risk, immediate next steps, and how this citation compares to similar violations.
Ranks #2,811 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.0% is below the FMCSR-wide average of 33.3%.
Direct answers grounded in TruckCodex inspection data
No. Across our 13 million inspection records, 172.310B has never resulted in an out-of-service order. Our data shows a 0.0% OOS rate for this violation—meaning all cited instances were non-critical findings. This is far below the national average OOS rate of 31.4% across all FMCSR codes, making 172.310B one of the least severe hazmat-related citations you can receive.
No, 172.310B is significantly less serious than peer violations in the hazardous materials category. Loading and unloading violations (177.834A-HMC, 177.834) trigger out-of-service orders in 97–99% of cases. Placarding violations (177.817a) are out-of-service 75% of the time. By contrast, our inspection records show 172.310B has a 0.0% OOS rate, placing it among the lowest-severity hazmat codes enforced.
Request the official citation document and review the specific violation details—exactly what item or documentation was cited. Do not admit fault in writing. Document photos, timestamps, and any corrective action you take immediately. Review your hazmat shipping papers, placards, and emergency response information for completeness and legibility. Contact your fleet safety manager with the citation details. If you believe the citation is inaccurate, you have the right to contest it through the DataQs system by submitting a Roadside Dispute Report within the defined timeline.
Rarely. Our inspection database shows only 1 citation for 172.310B in all-time records—making it rank #2796 out of 3,036 FMCSR codes by citation volume. Over the last 12 months, only 1 citation was issued. Over the last 90 days, there have been zero citations. This extremely low enforcement volume suggests the violation is uncommon or highly specific in scope.
Yes. All roadside inspection findings can be contested through the DataQs Roadside Dispute Report (RDR) process if you believe the citation is inaccurate or unsupported by evidence. Submit documentation, photos, or witness statements that contradict the officer's finding. Since 172.310B citations are rarely issued, detailed records of your compliance (shipping papers, placard condition, or emergency response documentation) are your strongest evidence. Your dispute must be filed within the established DataQs window.
Our inspection records include only 1 all-time citation for 172.310B—issued to a RAM vehicle operated by Alpha Testing LLC (USDOT 432419) in August 2025. With such minimal enforcement volume nationwide, we cannot identify meaningful geographic trends. The violation appears to be exceptionally rare across all states and regions.
Low urgency from an out-of-service perspective, but address it promptly for compliance. Since 172.310B has a 0.0% OOS rate, you will not be removed from service. However, hazmat violations are safety-critical and can trigger follow-up inspections or carrier audits. Correct the specific issue cited immediately, document your correction, and maintain compliance going forward. Repeat violations may increase regulatory attention even if individual citations are non-critical.
Alpha Testing LLC (USDOT 432419) has the only documented citation for 172.310B in our 13 million inspection records, with 1 citation all-time. Given the extremely low overall enforcement volume, a single citation represents 100% of the data we track. Most carriers have zero citations for this code.
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.