What 172.203D1 means in plain language
172.203D1 falls under the hazmat packaging and labeling requirements that govern how dangerous goods must be prepared for transport. This specific regulation addresses the proper use and maintenance of packaging materials and containers when shipping hazardous materials. If you've received this citation, it means an inspector found that the packaging, labeling, or containment system for hazmat cargo did not meet federal standards.
The violation can cover several scenarios: packaging that was damaged, deteriorated, or improperly sealed; labels or markings that were missing or illegible; or containers that did not provide adequate protection during transport. The core requirement is that all hazardous materials must be packaged in a way that protects the contents, prevents leakage, and keeps the public safe.
What our enforcement data actually shows
Across our 13 million+ inspection records, 172.203D1 has been cited only once in our entire database history. That single citation did not result in an out-of-service order, giving this code a 0.0% OOS rate. Over the last 12 months and last 90 days, we have recorded zero citations for this violation.
The rarity of this citation is striking. 172.203D1 ranks #2796 of 3,036 FMCSR codes by enforcement volume, placing it among the least-cited violations in the federal inspection database. For context, the all-FMCSR average out-of-service rate is 31.4%, meaning that when violations occur across the board, roughly one in three drivers are placed out of service. The fact that the single 172.203D1 citation resulted in zero OOS placements suggests that either the violation was corrected before road closure became necessary, or inspectors found it was not severe enough to warrant immediate removal from service.
Who gets cited most
Our inspection data shows only one carrier with a 172.203D1 citation: Greenwood Motor Lines Inc (USDOT 63391), with one citation in our records. Because this violation has occurred only once, geographic and carrier patterns are not meaningful. The citation involved vehicle makes ITNL and WANC, each with one recorded instance.
The extreme rarity of enforcement for this code suggests that either driver and carrier compliance with hazmat packaging standards is very high, or that inspectors are focusing enforcement resources on more frequently violated regulations within the hazmat category.
How severe is this compared to similar codes
Hazmat violations in the same regulatory family show vastly different enforcement profiles. The most frequently cited peer codes are 177.834A-HMC (general loading and unloading of hazmat) with 3,954 citations and a 99.2% OOS rate, and 177.834(a) with 3,839 citations and a 97.9% OOS rate. Both of these are cited hundreds of times more often than 172.203D1 and both carry extremely high out-of-service rates—meaning inspectors almost always remove drivers from service when these violations are found.
Other comparable codes show intermediate severity: 177.817(a) (placarding violation) has 2,274 citations with a 75.1% OOS rate, and 177.823(a) (movement of damaged hazmat packages) has 1,829 citations with a 51.8% OOS rate. By contrast, 172.516(c)(6) (placard damaged, deteriorated, or obscured) has 1,796 citations but only a 1.6% OOS rate, and 172.602(c)(1) (maintenance of emergency response information) has 1,464 citations with a 0.0% OOS rate—matching 172.203D1's lack of out-of-service enforcement.
The fact that 172.203D1 is so rarely cited in comparison to other hazmat packaging and placarding rules suggests that when it does occur, it may be treated as a documentation or minor packaging issue rather than as an immediate safety threat requiring road closure.
How to avoid it
Because 172.203D1 citations are extremely rare, the following actions will help you stay compliant:
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Inspect all hazmat packaging before loading. Before accepting any hazardous materials shipment, verify that all containers are intact, seals are unbroken, and labels are clearly visible and legible. Do not load damaged or leaking packages.
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Verify labeling accuracy during pre-trip. Check that all required hazmat labels (class labels, subsidiary hazard labels, and shipping name placards) are properly affixed to the correct sides and corners of the package. Labels must be able to withstand normal transport conditions without fading or peeling.
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Know your cargo manifest. Cross-reference the physical packages with your shipping papers. Confirm that the hazmat class, UN number, proper shipping name, and packing group all match between the label and the documentation.
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Protect packaging during transport. Ensure that your vehicle's cargo area does not have sharp edges, protruding bolts, or other hazards that could puncture or abrade hazmat containers. Secure the load properly so packages cannot shift or strike one another.
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Report and document any damage. If you discover that a hazmat package is leaking, damaged, or improperly labeled during your trip, stop in a safe location, do not continue transport, and contact your carrier and appropriate authorities immediately. Document what you found with photos if safe to do so.
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Work with shippers and carriers. As a driver, you are the final checkpoint. If your carrier or shipper has a pattern of providing poorly packaged or mislabeled hazmat, raise the issue with your safety manager. Your inspection records and feedback help fleets prevent violations.