UN 3529

ENGINE, INTERNAL COMBUSTION, FLAMMABLE GAS POWERED or ENGINE, FUEL CELL, FLAMMABLE GAS POWERED or MACHINERY, INTERNAL COMBUSTION, FLAMMABLE GAS POWERED or MACHINERY, FUEL CELL, FLAMMABLE GAS POWERED

UN 3529 — ADR 2025 Table A: class 2, classification code 6F, packing group —, labels 2.1, special provisions 363 667 669, limited quantity 0, excepted quantity E0, packing instructions P005, transport category -, tunnel restriction code (B), hazard identification number —.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 3529
(1) UN No.3529
(2) Name and descriptionENGINE, INTERNAL COMBUSTION, FLAMMABLE GAS POWERED or ENGINE, FUEL CELL, FLAMMABLE GAS POWERED or MACHINERY, INTERNAL COMBUSTION, FLAMMABLE GAS POWERED or MACHINERY, FUEL CELL, FLAMMABLE GAS POWERED
(3a) Class2
(3b) Classification code6F
(4) Packing group—
(5) Labels2.1
(6) Special provisions363 667 669
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP005
(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)- (B)
(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) — no change for UN 3529

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=3529&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

Tunnels
Tunnel code (B): in tanks, Prohibited in B, C, D, E; in other carriage, Prohibited in B, C, D, E. Category A tunnels only. (ADR 8.6.4; from the ADR table itself)
Labels
Labels: model 2.1 (Gases: flammable gases) (ADR 5.2.2.2.2, label model No. 2.1; paraphrase, not yet reviewed)
Packing
Packing instruction P005: Engines and machinery with dangerous goods (UN 3528-3530): no outer packaging if containment is adequate, otherwise strong outer packaging or secure fixing. (ADR 4.1.4.1, P005; 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 2 — Gases
UN 3529Class 2 — Gases
Packing Group
N/A
Not applicable
Classification Code
6F
Tunnel Code
(B) meaning →
Code governing tunnel passage
Transport Category
-
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
-
No transport category listed — 1.1.3.6 points cannot be computed for this row
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 363, SP 667, SP 669
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 2.1

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

Special Provisions
SP 363SP 667SP 669

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

Check if UN 3529 qualifies for 1.1.3.6 exemption
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Other Gases near UN 3529 (Class 2)

UN 3522
ARSINE, ADSORBED
UN 3523
GERMANE, ADSORBED
UN 3524
PHOSPHORUS PENTAFLUORIDE, ADSORBED
UN 3525
PHOSPHINE, ADSORBED
UN 3526
HYDROGEN SELENIDE, ADSORBED
All Class 2 UN numbers →
Use this data programmatically
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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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