☣️ DOT HAZMAT CLASS 9
Miscellaneous
Wide range: lithium batteries, environmentally hazardous substances, elevated temperature materials—case-by-case.
🧯☣️
⚠️ Training/quick-reference only. For real incidents, follow your SOP/SOG and the current ERG.
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Common hazards (high level)
- Diverse hazards depending on product
- Thermal runaway/fire in some battery incidents
- Environmental contamination risk
How to recognize
- Class 9 placard
- Battery shipments, damaged EV packs, container labels
- Runoff/contamination concerns
First actions (before Hazmat team)
- Isolate and size up carefully
- Request Hazmat for unknown or large incidents
- Consider extended operations for batteries (rekindle potential)
- Protect exposures and control runoff
- Consult ERG and follow SOP/SOG
What NOT to do
- Do not treat all Class 9 materials the same
- Do not underestimate battery rekindle risk
- Do not ignore environmental impacts
Common examples
Lithium-ion batteriesDry ice (some cases)Environmental hazard substancesHot asphalt (varies)
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FAQ
It includes materials that present hazards during transport but don’t fit neatly into Classes 1–8.
Yes—thermal runaway can re-ignite; follow SOP/SOG and product guidance for cooling/monitoring.
Isolate, request Hazmat if needed, protect exposures, and use ERG/SOP guidance.
Sources (high level): DOT/PHMSA class & marking concepts, NFPA 704 overview concepts, and ERG usage principles. This guide does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.