What happens when you're cited for Class 7 label violations. Direct answers backed by 13M+ inspection records.
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%.
Class 7 label : no activity or activity not in SI units
Direct answers grounded in TruckCodex inspection data
No. Across our inspection database, citations for 172.403G2 have resulted in zero out-of-service placements out of 4 total citations on record. The 0.0% OOS rate for this violation is significantly lower than the 31.4% national average across all FMCSR codes. This suggests inspectors typically treat Class 7 labeling issues as documentation or marking defects rather than immediate safety threats that warrant taking the vehicle off the road.
Much less serious than most hazmat citations. Our data shows peer violations in the same category carry vastly higher out-of-service rates: general loading/unloading hazmat violations (177.834A-HMC) hit 99.2% OOS; placarding violations (177.817(a)) reach 75.1% OOS. By contrast, 172.403G2 has never resulted in an out-of-service citation. This code targets labeling accuracy rather than the high-risk handling or security issues that trigger immediate vehicle removal.
Rarely. All-time citations total only 4, with just 1 citation in the last 12 months and 1 in the last 90 days. This code ranks #2480 of 3,036 FMCSR codes by enforcement volume, making it one of the least-cited violations in the hazardous materials category. The single citation in the most recent monthly data occurred in February 2026.
Over the last 180 days, Texas accounts for the only recorded citation of this violation in our database, with 1 citation and a 0.0% out-of-service rate. Given the very low national enforcement frequency (4 all-time citations), this violation is geographically sparse. If you operate primarily in other states, the risk of encountering this citation is extremely low.
Yes. All FMCSR citations, including 172.403G2, are contestable through the Safety Management System DataQs process. Since this violation concerns labeling accuracy and unit notation—both documentary/observable facts—disputes typically focus on whether the inspector correctly identified the activity value or SI unit discrepancy. Gather supporting shipping papers, label images, and hazmat registration documents. Submit within the DataQs window to challenge the citation's factual basis.
Our inspection records show 172.403G2 frequently co-occurs with three other hazmat violations in the same roadside check: improper RAM labeling (172.403G), missing emergency response information (172.600C), and placarding violations (177.817A). Each appeared in 1 shared inspection over the last 90 days. This pattern suggests inspectors conducting deep hazmat cargo reviews. If cited for 172.403G2, proactively verify all related Class 7 documentation, emergency contact info, and placard condition before resubmitting paperwork.
This violation attaches to both the driver and the motor carrier in FMCSA CSA scoring. It falls under the hazardous materials safety BASIC category, which means the citation contributes to the safety record of both the individual who was operating the vehicle and the company responsible for hazmat compliance. Carriers should use these rare citations as a training flag across their entire Class 7 shipping operation.
Where 172.403G2 is most commonly cited (last 180 days)
TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.
Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.
Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).
Cross-border carrier registry and Canadian recall campaigns where applicable.
TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.