What 172.407 means in plain language
172.407 covers requirements for marking and labeling hazardous materials packages during transport. Specifically, this regulation addresses the display of proper identification, class labels, and subsidiary hazard labels on the outside of packages containing hazardous materials. If you're hauling hazmat freight, every package must be marked and labeled in the exact manner prescribed by the hazardous materials regulations — the right label in the right place, in the right condition.
The regulation applies to anyone transporting hazardous materials in commerce. Whether you're an independent operator or driving for a large fleet, if your load contains hazmat, the packages themselves must meet these marking and labeling standards. Shippers are typically responsible for proper packaging and initial labeling, but as the driver, you are responsible for ensuring the load you accept is compliant before you move it.
What our enforcement data actually shows
Across our 13 million+ inspection records, 172.407 has been cited 194 times all-time. In the last 12 months, we recorded 33 citations, and in the last 90 days, just 8 citations. This makes 172.407 ranked #1222 out of 3,036 FMCSR codes by citation volume — a relatively uncommon violation.
More important: the out-of-service rate for 172.407 is 0.0%. Of the 194 citations in our database, none resulted in a vehicle being placed out of service. This stands in stark contrast to the all-FMCSR average out-of-service rate of 31.4%, meaning inspectors view this violation as a paperwork or labeling issue rather than an immediate safety threat to road operations.
The trend over the past 12 months shows sporadic enforcement. The highest month was June 2025 with 6 citations; most other months ranged between 1 and 4. This inconsistency suggests enforcement depends heavily on inspector training and state focus rather than being a systematic nationwide priority.
Who gets cited most
Our inspection records show Texas leads all states in 172.407 citations over the last 180 days, with 16 citations recorded and a 0.0% out-of-service rate. Because we only have meaningful data for one state in the top positions, geographic variation is not yet clear from our database, but Texas' concentration likely reflects higher hazmat transport volume through that region.
When we look at carriers across all-time data, fleets such as FOAMTECH INCORPORATED (USDOT 1192448) with 8 citations and WELDORS SUPPLY HOUSE INC (USDOT 448077) with 7 citations appear more frequently in our records. MAXFLOW CHEMICALS OF TEXAS LLC (USDOT 2369876) also shows 7 citations. These carriers operate in chemical, welding gas, and industrial supply segments where hazmat compliance is routine. The presence of these carriers does not suggest negligence — rather, it reflects that hazmat transport inherently carries greater compliance exposure.
How severe is this compared to similar codes
Within the hazardous materials category, 172.407 sits at the lighter end of enforcement severity. Compare it to peer codes in the same category:
177.834(a) — General loading/unloading hazmat has been cited 3,839 times with a 97.9% out-of-service rate. That code addresses the physical handling and securing of hazmat cargo — a much more serious safety issue. Our records show 172.407 is cited less than 1/20th as often and never results in OOS placement.
177.817(a) — Placarding violation has 2,274 citations and a 75.1% out-of-service rate. Placard placement and presence are tied directly to driver and public safety in an emergency.
172.516(c)(6) — Placard damaged deteriorated or obscured has 1,796 citations but only a 1.6% out-of-service rate — similar to 172.407 in terms of enforcement outcome, though cited about 9 times more frequently.
172.407 enforcement is uncommon and rarely severe because it typically addresses labeling details rather than active cargo hazards.
How to avoid it
Our inspection data shows that when 172.407 is cited, it often co-occurs with other labeling and identification violations. Specifically, we've recorded shared inspections involving improper subsidiary hazard labels (172.402A), label placement errors (172.406A1), missing identification numbers on bulk packaging (172.302A), and even damaged placards (172.516C6). This pattern suggests that labeling defects cluster together — if one label is wrong, others may be too.
Here's how to protect yourself:
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Pre-trip inspection of all hazmat packages. Before you accept a load, visually inspect every package. Look for the primary class label, any subsidiary hazard labels, and proper identification markings. Make sure labels are legible, not faded, torn, or obscured. Don't load it if you have doubts — call the shipper or broker.
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Verify label placement against the shipper's documentation. The label positions matter. Review the bill of lading or hazmat manifest to confirm the shipper applied labels exactly as required. Misplaced labels violate 172.406 and are a frequent co-occur with 172.407 citations.
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Check for bulk packaging identification numbers. If you're hauling bulk packages, confirm each one displays its UN identification number or proper commodity name clearly. This is the 172.302A violation we see paired with 172.407.
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Know which vehicle types are affected. Our data shows FORD vehicles account for 21 of the 194 citations, followed by FRHT and PTRB trailers with 10 each. This distribution likely reflects typical hazmat carrier fleets. Regardless of your vehicle type, the standard applies equally.
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Report damaged labels immediately. If a label becomes damaged, faded, or obscured during transport, you're now in violation of multiple codes. Before rolling out of a shipper's facility, ensure all labels are protected from weather and cargo handling damage.
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Request clear shipper packaging. If a shipper routinely provides marginal labeling, escalate the issue with your dispatcher or safety manager. Preventive conversations with shippers cost nothing and eliminate citations down the road.
The fact that 172.407 has a 0.0% out-of-service rate means a citation here is unlikely to stop your truck. But it's still a violation, it still appears on your record, and it contributes to your carrier's FMCSA safety profile. The easiest fix is a five-minute pre-trip label check.