UN 0335 — Fireworks
Placard: Explosive 1.3G. ERG Guide 112. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 0335 is Fireworks, a Class 1 pyrotechnic article assigned to ERG Guide 112. This division is mainly a fire and deflagration hazard with possible projection, smoke and package rupture concerns.
Hazard overview: UN 0335 fireworks are primarily a fire and deflagration hazard. They can burn rapidly, launch burning projectiles, rupture packaging and produce irritating smoke, but the classification is not normally a mass explosion hazard when transported as classified.
Response guidance: For a UN 0335 fireworks incident, responders should confirm the division and shipment details using shipping papers, package markings and ERG Guide 112. Isolate the area, keep crews upwind, avoid direct approach to burning packages and use remote cooling or exposure protection only when directed by incident command.
Firefighter training notes: Training should emphasize pyrotechnic, propellant or nitrocellulose fire behavior, smoke hazards, fragment potential and the risk of escalating nearby explosive articles. Common errors include approaching through smoke, disturbing damaged packages and failing to expand isolation when fire spreads.
Regulatory context: Fireworks is regulated as a Class 1 explosive article or substance. Transportation, storage, quantity and fire code requirements may apply depending on packaging and jurisdiction. Responders should verify current requirements through shipping papers, SDS, product documents and applicable DOT, ATF, OSHA, NFPA or local authority guidance.
Storage & handling: Fireworks should be stored in approved packaging or explosive storage areas away from heat, sparks, flame, friction, incompatible explosives and unauthorized access. Keep packages dry, protected from physical damage and segregated according to explosive compatibility requirements.
UN 0335 Quick Details
Common Hazards of UN 0335
- Fire and deflagration hazard; fireworks may burn intensely and launch or scatter burning fragments.
- Not normally a mass explosion hazard when transported as classified, but fire can rapidly involve multiple articles.
- Pyrotechnic smoke may contain irritating or toxic combustion products.
- Heated packages may rupture, ignite adjacent articles or project debris.
- Ignition sources, damaged packaging and bulk storage can increase fire spread.
- Large quantities may require expanded isolation and remote firefighting operations.
Chemical Identity & Physical Properties
Manufactured articles containing pyrotechnic compositions in various colors and forms. Typically packaged in cardboard tubes, canisters, or other containers with fuses attached.
| Also known as | PyrotechnicsPyrotechnic articlesConsumer fireworksDisplay fireworksAerial shellsRoman candles |
| Appearance | Manufactured articles containing pyrotechnic compositions in various colors and forms. Typically packaged in cardboard tubes, canisters, or other containers with fuses attached. |
| Flash Point | Not applicable (pyrotechnic composition) |
| Boiling Point | Not applicable (pyrotechnic composition) |
| Vapor Density | Not applicable (solid article) |
| Water Reactivity | Some compositions may react with water; generally stable when dry |
Fireground Response Guidance — UN 0335
Extinguishing Media
PPE Requirements
Responders should use structural firefighting gear with SCBA for smoke or fire exposure and maintain standoff distance from burning articles or packages. PPE does not replace evacuation if additional explosives or large quantities are involved.
Isolation & Evacuation
First Actions for a UN 0335 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away and deny entry.
- Stage upwind and avoid smoke from burning pyrotechnic, propellant or explosive material.
- Eliminate ignition sources if it is safe to do so.
- Isolate the area and check for nearby explosives, ammunition, rockets, propellants or pyrotechnic articles.
- Protect exposures only from a safe distance if directed by incident command.
- Use ERG Guide 112, shipping papers and incident command to set isolation and evacuation distances.
📋 Copy & Share Field Card
UN 0335 — FireworksUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.