UN 3258 — ADR 2025 Table A: class 9, classification code M10, packing group III, labels 9, special provisions 274 643, limited quantity 0, excepted quantity E0, packing instructions P099 IBC99, transport category 3, tunnel restriction code (D), hazard identification number 99.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 3258
(1) UN No.	3258
(2) Name and description	ELEVATED TEMPERATURE SOLID, N.O.S., at or above 240 °C
(3a) Class	9
(3b) Classification code	M10
(4) Packing group	III
(5) Labels	9
(6) Special provisions	274 643
(7a) Limited quantities	0
(7b) Excepted quantities	E0
(8) Packaging: packing instructions	P099 IBC99
(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)	3 (D)
(16) Special provisions for carriage: packages	—
(17) Special provisions for carriage: bulk	VC3
(18) Special provisions for carriage: loading, unloading and handling	—
(19) Special provisions for carriage: operation	—
(20) Hazard identification No.	99

ADR 2027 (accepted) — no change for UN 3258

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)

ADR 2027: no Table A change for this entry (checked against ECE/TRANS/WP.15/274, Add.1 and Corr.1). Other parts of ADR 2027 may still affect its carriage.

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 (D): in tanks, Prohibited in D, E; in other carriage, Prohibited in D, E. Categories A, B, C. (ADR 8.6.4; from the ADR table itself)
Small-load exemption: Transport category 3: at most 1000 per transport unit under 1.1.3.6, counted ×1 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
Labels: Labels: model 9 (Miscellaneous dangerous substances and articles) (ADR 5.2.2.2.2, label model No. 9; paraphrase, not yet reviewed)
Packing: Packing instruction P099: Only packagings approved for the goods by the competent authority; approval copy or a transport-document statement must accompany the load. Packing instruction IBC99: IBC99: only IBCs the competent authority has approved for the goods may be used, with proof of approval travelling with each consignment. (ADR 4.1.4.1, P099, 4.1.4.2, IBC99; paraphrase, not yet reviewed)
Carriage: Bulk carriage VC3: Bulk carriage allowed in specially equipped vehicles or containers built to standards set by the country-of-origin authority. (ADR 7.3.3.1, VC3; 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 SubstancesPacking Group III

UN 3258Class 9 — Miscellaneous Dangerous SubstancesPG III