UN 1461

CHLORATES, INORGANIC, N.O.S.

UN 1461 — ADR 2025 Table A: class 5.1, classification code O2, packing group II, labels 5.1, special provisions 274 351, limited quantity 1 kg, excepted quantity E2, packing instructions P002 IBC06, transport category 2, tunnel restriction code (E), hazard identification number 50.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 1461
(1) UN No.1461
(2) Name and descriptionCHLORATES, INORGANIC, N.O.S.
(3a) Class5.1
(3b) Classification codeO2
(4) Packing groupII
(5) Labels5.1
(6) Special provisions274 351
(7a) Limited quantities1 kg
(7b) Excepted quantitiesE2
(8) Packaging: packing instructionsP002 IBC06
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT3
(11) Portable tanks and bulk containers: special provisionsTP33
(12) ADR tank: tank codeSGAV
(13) ADR tank: special provisionsTU3
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)2 (E)
(16) Special provisions for carriage: packagesV11
(17) Special provisions for carriage: bulkVC1 VC2 AP6 AP7
(18) Special provisions for carriage: loading, unloading and handlingCV24
(19) Special provisions for carriage: operation—
(20) Hazard identification No.50

ADR 2027 (accepted) — no change for UN 1461

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 (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 5.1 (Oxidizing substances) (ADR 5.2.2.2.2, label model No. 5.1; paraphrase, not yet reviewed)
Packing
Packing instruction P002: General packing instruction for solids: combination, single, composite packagings and pressure receptacles, with net mass limits by packing group. Packing instruction IBC06: Solids under IBC06 may use metal, rigid plastics or composite (11HZ1/11HZ2/21HZ1/21HZ2/31HZ1) IBCs; see 4.1.3.4 if they may liquefy. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P002, 4.1.4.2, IBC06, 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 TP33: The assigned tank instruction covers granular/powdered solids and solids loaded hot but carried as a solid mass. Tank code SGAV: ADR tank code for Classes 1 and 3–9: solid tank, G (general minimum), openings A, valves/devices V. — S: tank for solid-state substances (powdery or granular); 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 TU3: Shell interior and every part touching the substance kept clean; no lubricant that could react dangerously with it on pumps or valves. Vehicle for tank carriage: AT — Tank vehicle for dangerous goods that is not EX/III, FL or a MEMU: tanks over 1 m³ / 3 m³, or battery-vehicle over 1 m³. (ADR 4.2.5.2.6, portable tank instruction T3, 4.2.5.3, TP33, 4.3.4.1.1, tank code SGAV, 4.3.5, TU3, 9.1.1.2, AT vehicle; paraphrase, not yet reviewed)
Carriage
Carriage provision V11: IBCs other than metal or rigid plastics IBCs must be carried in closed or sheeted vehicles or containers. Bulk carriage VC1: Bulk carriage allowed in sheeted vehicles, sheeted containers or sheeted bulk containers (BK1 also usable if 7.3.3.2 met). Bulk carriage VC2: Bulk carriage allowed in closed vehicles, closed containers or closed bulk containers (BK2 also usable if 7.3.3.2 met). Bulk provision AP6: Wooden or combustible bodies need an impermeable, combustion-resistant surfacing or sodium silicate coating; sheets impermeable and non-combustible. Bulk provision AP7: Bulk carriage is permitted only as a full load. Loading provision CV24: Clean the vehicle or container of combustible debris before loading; no readily flammable stowage material. (ADR 7.2.4, V11, 7.3.3.1, VC1, 7.3.3.1, VC2, 7.3.3.2, AP6, 7.3.3.2, AP7, 7.5.11, CV24; 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 5.1 — Oxidising Substances & Organic PeroxidesPacking Group II
UN 1461Class 5.1 — Oxidising Substances & Organic PeroxidesPG II
Packing Group
II
Medium danger
Classification Code
O2
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
50
Kemler code
Limited Quantity
1 kg
Max per inner package for LQ relief
Excepted Quantity
E2
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
1 kg
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E2
Max 30 ml/g per inner, 500 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 274, SP 351
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 5.1

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

Special Provisions
SP 274SP 351

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

Check if UN 1461 qualifies for 1.1.3.6 exemption
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Other Oxidising Substances & Organic Peroxides near UN 1461 (Class 5.1)

UN 1457
CALCIUM PEROXIDE
UN 1458
CHLORATE AND BORATE MIXTURE
UN 1459
CHLORATE AND MAGNESIUM CHLORIDE …
UN 1462
CHLORITES, INORGANIC, N.O.S.
UN 1463
CHROMIUM TRIOXIDE, ANHYDROUS
All Class 5.1 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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