UN 3091Lithium batteries contained in equipment or Lithium batteries packed with equipment
Proper shipping name: Lithium metal batteries contained in equipment
Class 9
Miscellaneous dangerous goods
Summary
UN 3091 is the UN number for lithium batteries contained in equipment or Lithium batteries packed with equipment. It is classed in Class 9 (miscellaneous dangerous goods) for transport. Emergency responders use ERG guide 138.
Emergency response
The Emergency Response Guidebook (ERG2024) guide for this number:
- Guide138Lithium metal batteries contained in equipment (including lithium alloy batteries)Lithium metal batteries packed with equipment (including lithium alloy batteries)
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 3091
- Name
- Lithium batteries contained in equipment or Lithium batteries packed with equipment
- Hazard class
- Class 9: Miscellaneous dangerous goods
- What the class covers
- Substances and articles which present a hazard during transport not covered by other classes, such as lithium batteries and environmentally hazardous substances.
U.S. Hazardous Materials Table
2 entries share this number in 49 CFR 172.101, by name, packing group or where the shipment is going.
UN3091Lithium metal batteries contained in equipment
including lithium alloy batteries
Special provisions: 181, 360, 388, 422, A54, A101
- Class
- 9
- Packing group
- None
- Labels
- 9
UN3091Lithium metal batteries packed with equipment
including lithium alloy batteries
Special provisions: 181, 360, 388, 422, A54
- Class
- 9
- Packing group
- None
- Labels
- 9
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 9
Class 9 covers dangerous goods that don't fit any other class, including lithium batteries, dry ice, environmentally hazardous substances, elevated-temperature materials and magnetized material.
Check the official sources
For emergency response, packaging and quantity limits, use these:
- CAMEO Chemicals: UN/NA 3091NOAA 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