FMCSR 177.840S: Hazmat Emergency Response Info — Q&A

No. Across our 13 million inspection records, this citation has never resulted in an out-of-service order. The 0.0% out-of-service rate for 177.840S means inspectors are not required to pull your vehicle from service for missing emergency response information.

For context, the national average out-of-service rate across all FMCSR codes is 31.4%, so this violation sits well below the enforcement threshold for immediate removal.

This citation carries a severity weight of 6 points in the CSA system. The actual points added to your CSA record depend on the 30-day multiplier: if this is your only hazmat violation in 30 days, you'll receive 6 points; multiple violations in the same month compound the total.

Points remain on your record for 24 months and affect your Safety Management Cycle scores, which insurers and brokers monitor.

First steps:

1. Verify what emergency response information was missing (shipping papers, placards, emergency contact details)
2. Request a copy of the inspection report from your carrier or FMCSA
3. Document your current hazmat compliance procedures
4. If you believe the citation is incorrect, file a DataQs challenge within 90 days
5. Work with your carrier's safety team to prevent recurrence

Since this is a documentation/procedure violation rather than equipment damage, it's typically contestable if the inspector's finding was factually incorrect.

It's on the lower end of hazmat severity. Our data shows peer violations in the same category carry much higher out-of-service rates: general loading/unloading hazmat (177.834A-HMC) results in out-of-service 99.2% of the time, while placarding violations (177.817(a)) hit 75.1%.

Emergency response information violations (172.602(c)(1), a related code) have a 0.0% out-of-service rate across 1,464 citations, suggesting inspectors treat this category as correctable documentation rather than immediate safety risk.

Yes. If you believe the citation is inaccurate—for example, if you had emergency response information present but the inspector missed it—you can file a DataQs (Roadside Data Quality) challenge with FMCSA within 90 days of the inspection.

Because this violation involves required documentation rather than physical equipment failure, success depends on your ability to provide evidence (copies of shipping papers, emergency contact records, or dispatch logs) that contradicts the inspector's finding. Work with your carrier's safety department to gather and submit documentation.

This is a rare citation. Across our entire database of 13 million roadside inspections, 177.840S has been cited only 1 time, all-time. There have been zero citations in the last 12 months and zero in the last 90 days.

Nationally, it ranks #2796 out of 3,036 FMCSR codes by citation volume, making it one of the least-frequently enforced hazmat regulations.

Low urgency, but not zero. While the 0.0% out-of-service rate means you won't be pulled over for this alone, hazmat emergency response information is a regulatory requirement. The enforcement rarity (zero citations in 90 days) suggests either excellent driver compliance or inconsistent inspector focus.

Do not ignore it: verify your hazmat documentation procedures and ensure all required emergency contact and response details are present in your vehicle. A second citation would signal a pattern to your carrier and FMCSA.

In the CSA system, safety violations follow both the driver and the carrier through separate BASIC categories. Your unsafe driving record (Driver BASIC) and your carrier's vehicle maintenance record (Carrier BASIC) each track these infractions independently over 24 months.

If you move to a new carrier, the citation remains on your personal FMCSA record; it does not transfer to the new employer's record, but it remains visible in your individual safety history to future insurers and brokers.