FMCSR 178.337-9(b) Q&A: What Drivers Need to Know

No. Across our inspection database, this code has never resulted in an out-of-service order. Our records show 1 all-time citation for 178.337-9(b), and it was not placed out of service. The 0.0% OOS rate for this code is significantly below the 31.4% national average for all FMCSR violations, indicating this is not an equipment shutdown citation.

This is among the least-cited hazmat violations. In the hazardous materials category, peer codes show dramatically higher enforcement: placarding violations (177.817(a)) appear in 2,274 citations with 75.1% OOS rates, and general loading/unloading violations (177.834A-HMC) reach 3,954 citations with 99.2% OOS rates. Our database shows only 1 citation for 178.337-9(b) all-time, ranking it #2796 out of 3,036 FMCSR codes. This suggests the violation is either rare or narrowly applied.

First steps:

1. Request the specific inspection report and citation details from the inspector or your state DOT.
2. Document the exact equipment, load, or condition cited.
3. Review the regulation text to understand what triggered the citation.
4. Notify your safety manager or carrier compliance officer immediately.
5. Do not operate until you understand the violation and confirm compliance.

Since this code is rarely cited, ensure you have the full context before proceeding with repairs or appeals.

The code falls under hazardous materials regulations, but our enforcement data doesn't break down the specific nature of individual citations. With only 1 citation in our 13M+ inspection database, no pattern exists to classify it as primarily documentation or equipment-based. Review your citation closely with your compliance team to determine whether the issue involves procedure, labeling, packaging, or equipment, as this will affect your remediation timeline and appeal strategy.

Our database shows only 1 all-time citation for this code, issued to a Peterbilt operated by IOC TRANSPORT LLC (USDOT 232906). With a single citation, no geographic pattern exists. Unlike other hazmat violations—which are cited hundreds or thousands of times across multiple states—178.337-9(b) enforcement is so minimal that state-level comparisons are not meaningful. This rarity may indicate narrow applicability or infrequent inspection focus.

Yes, you can file a DataQs (Safety Management System Record Evaluation) challenge if you believe the citation is inaccurate or unsupported. The FMCSA DataQs process allows drivers and carriers to dispute findings within a specific timeframe. Document the details of your equipment, maintenance records, or procedures relevant to the citation. Since hazmat violations can be contested on grounds of improper inspection technique or factual errors, gather photos and records supporting your compliance position before filing.

Our enforcement database does not contain CSA point values assigned to individual codes. Point severity is determined by FMCSA's Safety Management System, and point multipliers depend on your violation history and the time period of the citation. Contact your carrier's safety department or request your CSA profile directly from FMCSA's portal to see the exact point impact. Given the rarity of this citation, your compliance officer may need to reference the regulation text and FMCSA guidance directly.

Hazmat violations typically impact both the driver and the carrier in FMCSA's CSA system. The citation will appear in your personal driving record and your carrier's Safety Management System profile. This affects carrier safety ratings and can influence hiring and customer perception. Discuss with your safety manager how your carrier will handle remediation training and record maintenance. Even with low OOS risk, hazmat citations are tracked closely by regulators and brokers.