What happens when cited for defective hazmat package markings? Get answers on out-of-service risk, CSA points, state enforcement patterns, and next steps.
Ranks #2,502 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.0% is below the FMCSR-wide average of 33.3%.
No technical name on non-bulk
Direct answers grounded in TruckCodex inspection data
No. Across our 13 million inspection records, 172.301B has never resulted in an out-of-service order—the OOS rate is 0.0%. This code is not OOS-eligible under FMCSA rules. Compare that to the all-FMCSR average of 31.4% OOS rate: defective hazmat markings are treated as a documentation or labeling issue, not an immediate safety removal from service. You'll be cited and penalized, but your truck stays on the road.
172.301B carries a CSA severity weight of 5 points. FMCSA applies a 30-day rolling multiplier: each citation counts as 5 points for 30 days, then the points decay. A single citation adds 5 points to your carrier's Safety Management BASIC score; multiple citations within 30 days stack, multiplying the impact. For fleet managers, this is moderate—not as severe as a hazmat loading violation, but enough to flag driver or carrier compliance gaps in audits.
172.301B is among the least enforcement-heavy hazmat marking codes. Our records show only 4 all-time citations. Compare to peer violations in the same category: placarding violations (177.817a) have 2,274 citations with a 75.1% OOS rate, and general loading/unloading hazmat violations (177.834A-HMC) have 3,954 citations with 99.2% OOS rate. 172.301B's 0.0% OOS rate reflects that defective markings alone—without unsafe handling or loading—are treated as lower-priority infractions.
Yes, but your chances depend on whether the marking defect is a documentation error or a real labeling gap. DataQs (FMCSA's RDR—Roadside Inspection Data Query system) accepts challenges to inspection records. If the inspector cited you for a marking that was actually present, legible, and correctly positioned, submit an RDR with photos and the packaging standard reference. If the marking was genuinely missing or obscured, the citation is harder to overturn—focus instead on swift corrective action to show compliance.
Over the last 180 days, our data shows 172.301B citations concentrated in Texas with 1 citation and a 0.0% OOS rate. The enforcement volume is too low to identify other high-frequency states—only 3 citations in the last 12 months across the entire U.S. This suggests 172.301B is either rarely cited or compliance is strong nationally. Hazmat shippers and carriers in TX should double-check marking procedures, but this is not a regional enforcement hotspot.
Moderately urgent for compliance, but not emergency-level. Our records show zero citations in the last 90 days and only 3 in the past 12 months—enforcement is infrequent. However, CSA points accumulate for 30 days, so address the marking defect within a few days: correct the specific package, implement a pre-trip hazmat label verification checklist, and have your driver document compliance. Since hazmat regs are strict and marking failures can cascade into serious violations during subsequent inspections, treating it as a minor issue invites repeat citations.
Both. FMCSA CSA data attributes violations to the carrier's Safety Management BASIC. However, the citation itself is issued at roadside to the unit (truck and cargo), and driver conduct and training are part of carrier accountability. If the marking defect originated at the shipper, that's mitigating evidence for the carrier during a safety audit, but the violation stays on the carrier's CSA record. Drivers should preserve the inspection report and photo evidence to help their fleet prove systemic vs. one-off failure.
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Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
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