UN 3256

ELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. with flashpoint above 60° C, at or above its flashpoint and below 100° C

UN 3256 (variant 1 of 2, packing group III) — ADR 2025 Table A: class 3, classification code F2, packing group III, labels 3, special provisions 274 560, limited quantity 0, excepted quantity E0, packing instructions P099 IBC99, transport category 3, tunnel restriction code (D/E), hazard identification number 30.

UN 3256 (variant 2 of 2, packing group III) — ADR 2025 Table A: class 3, classification code F2, packing group III, labels 3, special provisions 274 560, limited quantity 0, excepted quantity E0, packing instructions P099 IBC99, transport category 3, tunnel restriction code (D/E), hazard identification number 30.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 3256 — variant 1 of 2, packing group III
(1) UN No.3256
(2) Name and descriptionELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. with flashpoint above 60° C, at or above its flashpoint and below 100° C
(3a) Class3
(3b) Classification codeF2
(4) Packing groupIII
(5) Labels3
(6) Special provisions274 560
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP099 IBC99
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT3
(11) Portable tanks and bulk containers: special provisionsTP3 TP29
(12) ADR tank: tank codeLGAV
(13) ADR tank: special provisionsTU35 TE24
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)3 (D/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: operationS2
(20) Hazard identification No.30
Table A — ADR 2025 (ECE/TRANS/352), UN 3256 — variant 2 of 2, packing group III
(1) UN No.3256
(2) Name and descriptionELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. with flashpoint above 60° C, at or above its flashpoint and at or above 100° C
(3a) Class3
(3b) Classification codeF2
(4) Packing groupIII
(5) Labels3
(6) Special provisions274 560
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP099 IBC99
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT3
(11) Portable tanks and bulk containers: special provisionsTP3 TP29
(12) ADR tank: tank codeLGAV
(13) ADR tank: special provisionsTU35 TE24
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)3 (D/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: operationS2
(20) Hazard identification No.30

ADR 2027 (accepted) — no change for UN 3256

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.

This entry under ADR 2027 on the API: /api/adr?un=3256&edition=2027 (editions and as_of).

ADR 2025 is the edition that applies until ADR 2027 takes effect on 1 January 2027, and FreightUtils answers on it by default until then; the API answers on ADR 2027 now with edition=2027. After that date, 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 — variant 1 of 2, packing group III

Tunnels
Tunnel code (D/E): in tanks, Prohibited in D, E (bulk or tanks); in other carriage, Prohibited in E. Bulk/tanks: A, B, C. Packages: A, B, C, D. (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 3 (Flammable liquids) (ADR 5.2.2.2.2, label model No. 3; 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. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P099, 4.1.4.2, IBC99, 4.1.10.4, MP2; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T3: Portable tank, Class 1 and 3–9: test 2.65 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.2. Portable tank provision TP3: For solids above melting point and hot liquids, maximum filling (%) is set by 4.2.1.9.5: 95 × dr/df. Portable tank provision TP29: A 1.5 bar minimum test pressure tank may be used if 1.5 bar or less is shown acceptable under 6.7.2.1. Tank code LGAV: ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings A, valves/devices V. — L: tank for liquid-state substances (liquids, or solids handed over molten); G: minimum calculation pressure under the general requirements of 6.8.2.1.14; A: filling or discharge openings at the bottom, each with 2 closures; V: has a 6.8.2.2.6 breather device but no flame-propagation protection, or is not explosion-pressure-shock resistant Tank provision TU35: Empty uncleaned tanks that held these substances are not subject to ADR once adequate measures have removed any hazard. Tank provision TE24: Bitumen tanks with a spray bar may replace the 6.8.2.2.2 closing device by a shut-off valve on the discharge pipe ahead of the spray bar. Vehicle for tank carriage: FL — Vehicle for flammable liquids (flash point ≤ 60 °C), flammable gases or UN 2015 > 60 % in tanks above set sizes. (ADR 4.2.5.2.6, portable tank instruction T3, 4.2.5.3, TP3, 4.2.5.3, TP29, 4.3.4.1.1, tank code LGAV, 4.3.5, TU35, 6.8.4 (b), TE24, 9.1.1.2, FL vehicle; paraphrase, not yet reviewed)
Carriage
Operation provision S2: Flammable liquids/gases: no ordinary portable lights in closed load compartments; FL heaters off during loading; earth FL vehicles before filling. (ADR 8.5, S2; 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.

In plain words — variant 2 of 2, packing group III

Tunnels
Tunnel code (D/E): in tanks, Prohibited in D, E (bulk or tanks); in other carriage, Prohibited in E. Bulk/tanks: A, B, C. Packages: A, B, C, D. (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 3 (Flammable liquids) (ADR 5.2.2.2.2, label model No. 3; 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. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P099, 4.1.4.2, IBC99, 4.1.10.4, MP2; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T3: Portable tank, Class 1 and 3–9: test 2.65 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.2. Portable tank provision TP3: For solids above melting point and hot liquids, maximum filling (%) is set by 4.2.1.9.5: 95 × dr/df. Portable tank provision TP29: A 1.5 bar minimum test pressure tank may be used if 1.5 bar or less is shown acceptable under 6.7.2.1. Tank code LGAV: ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings A, valves/devices V. — L: tank for liquid-state substances (liquids, or solids handed over molten); G: minimum calculation pressure under the general requirements of 6.8.2.1.14; A: filling or discharge openings at the bottom, each with 2 closures; V: has a 6.8.2.2.6 breather device but no flame-propagation protection, or is not explosion-pressure-shock resistant Tank provision TU35: Empty uncleaned tanks that held these substances are not subject to ADR once adequate measures have removed any hazard. Tank provision TE24: Bitumen tanks with a spray bar may replace the 6.8.2.2.2 closing device by a shut-off valve on the discharge pipe ahead of the spray bar. Vehicle for tank carriage: FL — Vehicle for flammable liquids (flash point ≤ 60 °C), flammable gases or UN 2015 > 60 % in tanks above set sizes. (ADR 4.2.5.2.6, portable tank instruction T3, 4.2.5.3, TP3, 4.2.5.3, TP29, 4.3.4.1.1, tank code LGAV, 4.3.5, TU35, 6.8.4 (b), TE24, 9.1.1.2, FL vehicle; paraphrase, not yet reviewed)
Carriage
Operation provision S2: Flammable liquids/gases: no ordinary portable lights in closed load compartments; FL heaters off during loading; earth FL vehicles before filling. (ADR 8.5, S2; 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 3 — Flammable LiquidsPacking Group III2 variants
UN 3256 has 2 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
UN 3256Class 3 — Flammable LiquidsPG IIIVariant 1 of 2
ELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. with flashpoint above 60° C, at or above its flashpoint and below 100° C
Packing Group
III
Low danger
Classification Code
F2
Tunnel Code
(D/E) meaning →
Code governing tunnel passage
Transport Category
3
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
30
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 3
×1 points per kg/L — up to 1,000 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
1,000 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 274, SP 560
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 3

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

Special Provisions
SP 274SP 560

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

UN 3256Class 3 — Flammable LiquidsPG IIIVariant 2 of 2
ELEVATED TEMPERATURE LIQUID, FLAMMABLE, N.O.S. with flashpoint above 60° C, at or above its flashpoint and at or above 100° C
Packing Group
III
Low danger
Classification Code
F2
Tunnel Code
(D/E) meaning →
Code governing tunnel passage
Transport Category
3
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
30
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 3
×1 points per kg/L — up to 1,000 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
1,000 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 274, SP 560
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 3

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

Special Provisions
SP 274SP 560

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

Check if UN 3256 qualifies for 1.1.3.6 exemption
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Other Flammable Liquids near UN 3256 (Class 3)

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MEDICINE, LIQUID, FLAMMABLE, TOX…
UN 3269
POLYESTER RESIN KIT, liquid base…
UN 3271
ETHERS, N.O.S.
UN 3272
ESTERS, N.O.S.
UN 3273
NITRILES, FLAMMABLE, TOXIC, N.O.S.
All Class 3 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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