UN 3091

LITHIUM METAL BATTERIES CONTAINED IN EQUIPMENT or LITHIUM METAL BATTERIES PACKED WITH EQUIPMENT (including lithium alloy batteries)

UN 3091 — ADR 2025 Table A: class 9, classification code M4, packing group —, labels 9A, special provisions 188 230 310 360 376 377 387 390 670 677, limited quantity 0, excepted quantity E0, packing instructions P903 P908 P909 P910 P911 LP903 LP904 LP905 LP906, transport category 2, tunnel restriction code (E), hazard identification number —.

UNECE ADR 2025, ECE/TRANS/352 · checked 2026-10-28

Table A — ADR 2025 (ECE/TRANS/352), UN 3091
(1) UN No.3091
(2) Name and descriptionLITHIUM METAL BATTERIES CONTAINED IN EQUIPMENT or LITHIUM METAL BATTERIES PACKED WITH EQUIPMENT (including lithium alloy batteries)
(3a) Class9
(3b) Classification codeM4
(4) Packing group—
(5) Labels9A
(6) Special provisions188 230 310 360 376 377 387 390 670 677
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP903 P908 P909 P910 P911 LP903 LP904 LP905 LP906
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisions—
(10) Portable tanks and bulk containers: instructions—
(11) Portable tanks and bulk containers: special provisions—
(12) ADR tank: tank code—
(13) ADR tank: special provisions—
(14) Vehicle for tank carriage—
(15) Transport category (Tunnel restriction code)2 (E)
(16) Special provisions for carriage: packages—
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handling—
(19) Special provisions for carriage: operation—
(20) Hazard identification No.—

ADR 2027 (accepted) — what changes for UN 3091

ADR 2027 was accepted: depositary notification C.N.395.2026 (9 October 2026) records no objection to the amendments proposed by C.N.252.2026. It applies from 1 January 2027, and ADR 2025 may still be applied until 30 June 2027 (1.6.1.1). (C.N.395.2026)

UN 3091: Table A changes, ADR 2025 → ADR 2027
ColumnADR 2025 → ADR 2027Source
(6) Special provisions188 230 310 360 376 377 387 390 670 677 → 188 230 310 360 376 377 387 390 670 677 680ECE/TRANS/WP.15/274, PDF p. 16

ADR 2025 remains the edition FreightUtils serves and the one that applies until ADR 2027 takes effect on 1 January 2027; after that, ADR 2025 may still be applied until 30 June 2027 (1.6.1.1).

All ADR 2027 Table A changes →Check a list of UN numbers →

In plain words

Tunnels
Tunnel code (E): in tanks, Prohibited in E; in other carriage, Prohibited in E. Every category except E. (ADR 8.6.4; from the ADR table itself)
Small-load exemption
Transport category 2: at most 333 per transport unit under 1.1.3.6, counted ×3 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
Labels
Labels: model 9A (Miscellaneous dangerous substances and articles (battery variant)) (ADR 5.2.2.2.2, label model No. 9A; paraphrase, not yet reviewed)
Packing
Packing instruction P903: Lithium and sodium ion cells/batteries (UN 3090, 3091, 3480, 3481, 3551, 3552): packaging for loose, packed with, or contained in equipment. Packing instruction P908: Damaged or defective lithium/sodium ion cells and batteries: individually packed in PG II packagings with thermal insulation; >30 kg one per outer. Packing instruction P909: Lithium/sodium ion cells and batteries for disposal or recycling: PG II packagings with lined metal; small cells/batteries in 30 kg strong outers. Packing instruction P910: Lithium/sodium ion production runs of up to 100 and pre-production prototypes for testing: individually packed in insulated PG II packagings. Packing instruction P911: Damaged/defective lithium or sodium ion cells liable to react dangerously: PG I packagings proven to contain a thermal event (surface <=100 °C, no flame). Packing instruction LP903: Large lithium/sodium cells (over 500 g) and batteries (over 12 kg), and equipment holding them, in rigid packing group II large packagings. Packing instruction LP904: A single damaged or defective lithium/sodium battery, or one item of equipment holding such cells, in a rigid packing group II large packaging. Packing instruction LP905: Prototype and small-production-run (up to 100) lithium/sodium cells and batteries: one battery or one equipment item per rigid packing group II large packaging. Packing instruction LP906: Damaged or defective lithium/sodium batteries liable to react dangerously in carriage: tested packing group I large packagings that contain fire, heat and gas. (ADR 4.1.4.1, P903, 4.1.4.1, P908, 4.1.4.1, P909, 4.1.4.1, P910, 4.1.4.1, P911, 4.1.4.3, LP903, 4.1.4.3, LP904, 4.1.4.3, LP905, 4.1.4.3, LP906; paraphrase, not yet reviewed)

Assembled from FreightUtils' meanings of the Table A codes, not the official text. A statement marked “not yet reviewed” has not yet been checked against ADR by a person.

Class 9 — Miscellaneous Dangerous Substances
UN 3091Class 9 — Miscellaneous Dangerous Substances
Packing Group
N/A
Not applicable
Classification Code
M4
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
—
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 2
×3 points per kg/L — up to 333 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
333 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
Limited Quantity
Not permitted
No limited-quantity relief for this entry (Chapter 3.4)
Excepted Quantity
E0
No excepted-quantity relief for this entry (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 188, SP 230, SP 310, SP 360, SP 376, SP 377, SP 387, SP 390, SP 670, SP 677
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Check SP 188 first — UN 3091

Whether this consignment meets SP 188 is consignor data (per-cell and per-battery lithium content or watt-hour rating, test summaries, marks). This check does not adjudicate it — check SP 188 first; if it applies, the LQ and 1.1.3.6 results below are moot because the goods are not subject to other provisions of ADR.

“Cells and batteries offered for carriage are not subject to other provisions of ADR if they meet the following:”

(a) “For a lithium metal or lithium alloy cell, the lithium content is not more than 1 g, and for a lithium ion or sodium ion cell, the watt-hour rating is not more than 20 Wh;”

(b) “For a lithium metal or lithium alloy battery the aggregate lithium content is not more than 2 g, and for a lithium ion or sodium ion battery, the watt-hour rating is not more than 100 Wh. Lithium ion and sodium ion batteries subject to this provision shall be marked with the watt-hour rating on the outside case, except lithium ion batteries manufactured before 1 January 2009;”

(c) to (h) add the 2.2.9.1.7 test and design provisions, short-circuit protection, the battery mark of 5.2.1.9, a 1.2 m drop test for packages not installed in equipment, and a 30 kg gross-mass cap per package except when installed in or packed with equipment.

“As used above and elsewhere in ADR, "lithium content" means the mass of lithium in the anode of a lithium metal or lithium alloy cell.”

ADR 2025, Chapter 3.3, special provision 188 (UNECE, ECE/TRANS/352 Vol. I) — quoted verbatim.
Hazard Labels Required
Label 9A

These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.

Special Provisions
SP 188SP 230SP 310SP 360SP 376SP 377SP 387SP 390SP 670SP 677

Refer to ADR 2025 Chapter 3.3 for full text of each provision.

Check if UN 3091 qualifies for 1.1.3.6 exemption
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All Class 9 UN numbers →
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified October 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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