☣️ UN 3077 • CLASS 9
Environmentally hazardous substance, solid, n.o.s.
Placard: Miscellaneous. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
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Quick details
UN 3077
Class: 9
Placard type: Miscellaneous
ERG: Guide 171 (check current ERG)
Isolation: ERG 171: Small spills isolate 25m all directions; large spills isolate 50m all directions; no evacuation distances specified for this guide as materials present minimal immediate hazard to people
Chemical & Response Details
| Also known as | Environmental hazard solid NOSHazardous to aquatic environment solidMarine pollutant solidEcotoxic substance solid |
| Appearance | Variable appearance depending on specific substance; typically a solid material at room temperature that poses environmental hazards, particularly to aquatic ecosystems. May be powders, granules, or solid masses with varying colors and no characteristic odor as this is a generic classification. |
| Flash Point | Variable depending on specific substance; many are not readily ignitable |
| Boiling Point | Not applicable (solid at ambient conditions) |
| Vapor Density | Not applicable (solid material) |
| Water Reactivity | Generally no violent reaction, but may slowly dissolve or release harmful substances into water causing environmental damage |
| Extinguishing | Dry chemical, CO2, water spray, or foam generally acceptable; specific agent depends on actual substance |
| PPE | ⚠️ Level D minimum for routine handling; Level C or B if substance identity unknown or airborne exposure possible; nitrile or neoprene gloves recommended; respiratory protection if dust generation occurs |
| Isolation | ERG 171: Small spills isolate 25m all directions; large spills isolate 50m all directions; no evacuation distances specified for this guide as materials present minimal immediate hazard to people |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Some may burn but none ignite readily.
- Containers may explode when heated.
- Some may be transported hot.
- For UN3508, Capacitor, asymmetric, be aware of possible short circuiting as this product is transported
- Polymeric beads, expandable (UN2211) may evolve flammable vapours.
- Inhalation of material may be harmful.
- Contact may cause burns to skin and eyes.
- Inhalation of Asbestos dust may have a damaging effect on the lungs.
First actions (field-minded)
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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UN 3077 — Environmentally hazardous substance, sol HAZMAT RADIO NOTE — UN 3077
Product: Environmentally hazardous substance, solid, n.o.s.
Class 9 / Miscellaneous / ERG 171
PPE: Level D minimum for routine handling; Level C or B if substance identity unknown or airborne exposure possible; nitrile or neoprene gloves recommended; respiratory protection if dust generation occurs
ISOLATION: ERG 171: Small spills isolate 25m all directions; large spills isolate 50m all directions; no evacuation distances specified for this guide as materials present minimal immediate hazard to people
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 3077 — Environmentally hazardous substance, solid, n.o.s.
Class: 9 | Placard: Miscellaneous | ERG Guide: 171
Appearance: Variable appearance depending on specific substance; typically a solid material at room temperature that poses environmental hazards, particularly to aquatic ecosystems. May be powders, granules, or solid masses with varying colors and no characteristic odor as this is a generic classification.
Water Reactivity: Generally no violent reaction, but may slowly dissolve or release harmful substances into water causing environmental damage
Extinguishing: Dry chemical, CO2, water spray, or foam generally acceptable; specific agent depends on actual substance
PPE: Level D minimum for routine handling; Level C or B if substance identity unknown or airborne exposure possible; nitrile or neoprene gloves recommended; respiratory protection if dust generation occurs
Isolation: ERG 171: Small spills isolate 25m all directions; large spills isolate 50m all directions; no evacuation distances specified for this guide as materials present minimal immediate hazard to people
— Key Hazards —
• Some may burn but none ignite readily.
• Containers may explode when heated.
• Some may be transported hot.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
SOURCE: allfirefighter.com/hazmat/un/3077 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3077 Environmentally hazardous substance, solid, n.o.s. Cls9 ERG171 | allfirefighter.com/hazmat/un/3077SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions. Page: https://allfirefighter.com/hazmat/un/3077
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FAQ
Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot. For UN3508, Capacitor, asymmetric, be aware of possible short circuiting as this product is transported Polymeric beads, expandable (UN2211) may evolve flammable vapours. Inhalation of material may be harmful. Contact may cause burns to skin and eyes. Inhalation of Asbestos dust may have a damaging effect on the lungs.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Level D minimum for routine handling; Level C or B if substance identity unknown or airborne exposure possible; nitrile or neoprene gloves recommended; respiratory protection if dust generation occurs
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 171 and your department SOP/SOG for incident-specific protective actions.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles. This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.