UN 0249Contrivances, water-activated, with burster, expelling charge, or propelling charge
Division 1.3L
Explosives
Summary
UN 0249 is the UN number for contrivances, water-activated, with burster, expelling charge, or propelling charge. It is classed in Division 1.3L (explosives) of Class 1 for transport. Emergency responders use ERG guide 112.
Emergency response
The ERG doesn't list explosives by UN number. It covers Division 1.3 under this entry:
- Guide112Explosives, division 1.1, 1.2, 1.3 or 1.5
From the 2024 Emergency Response Guidebook (ERG2024), published by U.S. Department of Transportation, PHMSA. Read the full guide in the ERG or on CAMEO Chemicals.
Identification
- UN number
- UN 0249
- Name
- Contrivances, water-activated, with burster, expelling charge, or propelling charge
- Hazard class
- Class 1: Explosives
- Division
- 1.3L: ExplosivesL is the compatibility group, which decides which explosives can travel together.
- What the class covers
- Explosives which have a fire hazard and either a minor blast hazard or a minor projection hazard.
U.S. Hazardous Materials Table
The entry for this number in 49 CFR 172.101.
UN0249Contrivances, water-activated
with burster, expelling charge or propelling charge
- Technical name required in parentheses
- Class
- 1.3L
- Packing group
- None
- Labels
- 1.3L
From the eCFR edition of 49 CFR 172.101 dated 2026-10-05 (section last amended 2026-09-08). The eCFR is an editorial compilation, not the official legal edition. Read the current table.
About Class 1
Class 1 covers explosive substances and articles, from blasting explosives to fireworks and ammunition. It's split into six divisions by how the material behaves in a fire or accident, from 1.1 (mass explosion hazard) to 1.6 (extremely insensitive articles). Explosives also carry a compatibility group letter, such as 1.4S, which governs which explosives can be transported together.
Check the official sources
For emergency response, packaging and quantity limits, use these:
- CAMEO Chemicals: UN/NA 0249NOAA datasheets with the ERG response guide and isolation distances
- Emergency Response Guidebook (ERG)PHMSA's guide for first responders, free as a PDF or app
- 49 CFR 172.101 Hazardous Materials TableThe legal U.S. entry: proper shipping name, packing group, labels and special provisions