HazMat Tool — substance information

Lithium metal batteries contained in equipment including lithium alloy batteries

HMT May 2026
UN / ID
UN 3091
Hazard class
9
Packing group
n/a (multiple — see tabs)
ERG guide
ERG 138
Special provisions
SP 181, SP 360, SP 388, SP 422, SP A54, SP A101
Source
49 CFR §172 (2026/05)

Spot an error in this entry?

Lithium metal batteries contained in equipment including lithium alloy batteries

Emergency Response Guide No. 138

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

9
Miscellaneous hazardous materials

(4) Identification number Help

UN 3091

(5) Packing Group Help

n/a

(6) Labels Help

Miscellaneous hazardous materials (9)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
181
360
388
422
A54
A101

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions185see 49 CFR §173.185
(8B) Non-bulk185see 49 CFR §173.185
(8C) Bulk185see 49 CFR §173.185

(9) Quantity Limits Help

(9A) Passenger aircraft/rail5 kg
(9B) Cargo aircraft only35 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

(3) Hazard Class

9
Miscellaneous hazardous materials

(4) Identification number Help

UN 3091

(5) Packing Group Help

n/a

(6) Labels Help

Miscellaneous hazardous materials (9)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
181
360
388
422
A54

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions185see 49 CFR §173.185
(8B) Non-bulk185see 49 CFR §173.185
(8C) Bulk185see 49 CFR §173.185

(9) Quantity Limits Help

(9A) Passenger aircraft/rail5 kg
(9B) Cargo aircraft only35 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

PG n/a PG n/a
1
2Lithium metal batteries contained in equipment including lithium alloy batteriesLithium metal batteries packed with equipment including lithium alloy batteries
399
4UN 3091UN 3091
5 n/a n/a
699
7181, 360, 388, 422, A54, A101181, 360, 388, 422, A54
8A185185
8B185185
8C185185
9A5 kg5 kg
9B35 kg35 kg
10AAA
10B156156

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

No compatibility information for class 9 in 49 CFR §177.848 included.

Scope & sources (important)Click to show CFR references

This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):

  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles