What 172.202A3 means in plain language
When you transport hazardous materials, federal regulations require your shipping papers to include specific information about what you're carrying. This code addresses a shipping paper description that is missing required details. The proper shipping name, hazard class designation, UN or NA identification number, and packing group must all be clearly documented on your papers before you leave the shipper's facility.
This isn't about having no shipping papers at all—it's about the papers you do have being incomplete. An inspector at roadside will compare what's written on your shipping paper against the hazmat load in your vehicle. If any of those four core pieces of information are absent, vague, or incorrectly recorded, you meet the definition of this violation.
The consequence is straightforward: you'll receive a citation. However, unlike some hazmat violations, this citation does not automatically result in an out-of-service order, which means you may be allowed to continue your trip after the citation is issued.
What our enforcement data actually shows
Across our 13 million+ inspection records, this code appears 134 times all-time, making it ranked #1346 of 3,036 FMCSR codes by citation volume. In the last 12 months, we've recorded 72 citations for 172.202A3, and in the last 90 days, 13 citations.
The out-of-service rate for this code stands at 4.5%—only 6 drivers were placed out of service out of 134 total citations. This is significantly lower than the all-FMCSR average OOS rate of 31.4%, indicating that inspectors rarely remove vehicles from service for this violation alone. Most citations result in a warning or citation that allows you to either correct the paperwork on the spot or proceed with a fix-it notice.
The monthly trend over the past year shows citations clustering in May through June (8 and 10 citations respectively) and again in December (8 citations), with lighter months in April and July. This suggests seasonal patterns or specific enforcement focus periods.
Who gets cited most
Our data shows state-level variation in how often this citation is issued. Texas leads significantly with 30 citations in the last 180 days, followed by New Mexico with 4 citations, and North Carolina with 1 citation. The OOS rates vary only slightly: Texas at 3.3%, New Mexico at 0.0%, and North Carolina at 0.0%. This means even in the state with the highest citation volume, fewer than 1 in 30 citations result in an out-of-service order.
Among carriers in our all-time database, several have received multiple citations: SAIA MOTOR FREIGHT LINE LLC (USDOT 29124) and CONATSER SITE SERVICES TX LP (USDOT 2302115) each have 3 citations on record. This does not imply systematic negligence; rather, these are carriers that operate in hazmat transportation where paperwork completeness is critical and enforcement scrutiny is higher.
How severe is this compared to similar codes
Within the Hazardous Materials category, 172.202A3 sits at the less severe end of the spectrum. Compare it to peer violations: placarding violations under 177.817(a) account for 2,274 citations with a 75.1% OOS rate, and general loading/unloading hazmat violations under 177.834A-HMC reach 3,954 citations with a 99.2% OOS rate. Even placarding damage or deterioration (172.516(c)(6)) has a 1.6% OOS rate across 1,796 citations—still 3.5 times higher than 172.202A3's 4.5%.
The data indicates that incomplete shipping paper description is treated by roadside inspectors as a documentation deficiency rather than a safety emergency. It is correctable, and the violation does not typically cascade into vehicle impoundment or multi-day delays.
How to avoid it
Before you pick up your load:
- Request and review all shipping papers at the shipper's dock before accepting the load. Verify that the proper shipping name, hazard class, UN/NA ID number, and packing group are all present for every hazardous material on board.
- Cross-check the shipping papers against the physical cargo. If what you see in the vehicle doesn't match what's on paper—or if something is missing—refuse the load and ask the shipper to correct it. Don't leave the facility with incomplete paperwork.
- Keep a copy of completed, correct shipping papers easily accessible in your cab, not buried in a folder or locked in a glovebox where you can't retrieve it quickly during an inspection.
During your trip:
- If you stop for fuel, rest, or meal breaks, periodically glance at your shipping papers to ensure they're still legible and haven't been damaged or smudged by weather or spills.
- If an inspector requests to see your shipping papers during a roadside inspection, have them ready and present them without hesitation. Cooperation and accuracy reduce friction.
Vehicle-specific awareness:
Our data shows citations are distributed across many vehicle makes, with Freightliner (28 citations), Peterbilt (26 citations), and Kenworth (18 citations) representing the highest counts. This reflects the prevalence of these chassis in hazmat transport, not a design flaw. Regardless of your truck's make, shipping paper management is a driver discipline issue, not a vehicle maintenance issue.