FMCSR 172.203K Citation: What Drivers Need to Know

No. Across 13 million inspections, our records show that 172.203K citations result in an out-of-service order only 2.1% of the time—47 times out of 47 all-time citations. That's one truck placed out of service in the entire dataset. For context, the national average out-of-service rate across all FMCSR codes is 31.4%, so this violation is significantly less likely to sideline your rig than most other citations.

First, request a copy of the inspection report and the specific finding from the inspector. Second, review your hazmat shipping papers and documentation immediately. Our data shows that when 172.203K is cited, the most common co-occurring violations are incomplete hazmat descriptions (172.202A4, 172.202B) and emergency response information issues (172.602C1). Check that all your placards, labels, and supporting documentation are complete and correct. Third, preserve the inspection record—you may contest it through DataQs if you believe the finding was incorrect.

Relative to the hazmat category, it's on the less severe end. Our database compares it to peer codes like 177.834A (general hazmat loading/unloading, 99.2% OOS rate) and 177.817A (placarding violations, 75.1% OOS rate). At 2.1%, this code's out-of-service rate is far lower than those dangerous-goods violations. However, it still reflects a documentation gap in hazmat transport, so correcting it is important for compliance even if it rarely triggers an immediate roadside shutdown.

Over the last 180 days, our records show that Texas leads in 172.203K citations with 6 documented cases. The code is relatively rare nationally—ranked 1,656th out of 3,036 FMCSR codes by total citation volume—so most states see very few or zero citations. If you're operating in Texas, especially hauling hazmat, verify that all shipping documentation includes proper technical names for every entry before each run.

Over the last 12 months, 172.203K citations are stable and low. We recorded 20 total citations in that window, peaking at 4 citations in both August and September 2025, then dropping back to 1–2 per month thereafter. The all-time total is only 47 citations. This is one of the least-cited FMCSR violations in our 13 million-record database, suggesting enforcement is not intensifying—but compliance gaps still exist, particularly in hazmat documentation practices.

Yes. All FMCSR violations are contestable through FMCSA's DataQs (Database Quality System) within a set timeframe after citation. For a 172.203K finding, focus on whether the inspector properly documented the specific hazmat entry in question and whether your shipping papers actually lacked the technical name at the time of inspection. If the finding is factual but you've since corrected it, submit proof of remediation. DataQs works best when you have documentary evidence—copies of correct shipping papers, manifests, or hazmat placards from the cited date.

Hazmat compliance violations are a carrier responsibility under FMCSA CSA scoring. FMCSA assigns violations to both the driver's and carrier's records, but the primary accountability is on the motor carrier and transportation company—they must ensure all hazmat documentation, placarding, and labeling are correct before the load leaves the dock. As a driver, you share responsibility for pre-trip verification, but the citation will appear on both records in the Safety and Fitness Electronic Records System (SAFER).

Our inspection data from the last 90 days shows that when drivers are cited for 172.203K, the most frequent co-citations are emergency response information accessibility (172.602C1, 2 shared inspections) and incomplete hazmat description codes (172.202A4 and 172.202B, 1 each). You'll also see occasional placarding and label placement violations. This pattern suggests that 172.203K citations often signal broader documentation or hazmat communication gaps rather than isolated errors, so a thorough audit of your entire load documentation is warranted.