UN 1972

METHANE, REFRIGERATED LIQUID or NATURAL GAS, REFRIGERATED LIQUID with high methane content

UN 1972 — ADR 2025 Table A: class 2, classification code 3F, packing group —, labels 2.1, special provisions 392, limited quantity 0, excepted quantity E0, packing instructions P203, transport category 2, tunnel restriction code (B/D), hazard identification number 223.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 1972
(1) UN No.1972
(2) Name and descriptionMETHANE, REFRIGERATED LIQUID or NATURAL GAS, REFRIGERATED LIQUID with high methane content
(3a) Class2
(3b) Classification code3F
(4) Packing group—
(5) Labels2.1
(6) Special provisions392
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP203
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP9
(10) Portable tanks and bulk containers: instructionsT75
(11) Portable tanks and bulk containers: special provisionsTP5
(12) ADR tank: tank codeRxBN
(13) ADR tank: special provisionsTU18 TE26 TA4 TT9
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)2 (B/D)
(16) Special provisions for carriage: packagesV5
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV9 CV11 CV36
(19) Special provisions for carriage: operationS2 S17
(20) Hazard identification No.223

ADR 2027 (accepted) — what changes for UN 1972

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 1972: Table A changes, ADR 2025 → ADR 2027
ColumnADR 2025 → ADR 2027Source
(13) ADR tank special provisionsTU18 TE26 TA4 TT9 → TU18 TE26 TA4 TT9 TM6ECE/TRANS/WP.15/274, PDF p. 15

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 (B/D): in tanks, Prohibited in B, C, D, E; in other carriage, Prohibited in D, E. Tanks: A only. Packages: A, B, C. (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 2.1 (Gases: flammable gases) (ADR 5.2.2.2.2, label model No. 2.1; paraphrase, not yet reviewed)
Packing
Packing instruction P203: Refrigerated liquefied gases in closed cryogenic receptacles (test pressure, 98 % fill, relief devices) or, for listed 3A gases, open ones up to 450 l. Mixed packing provision MP9: May share a combination outer packaging with other Class 2 goods, with other classes that permit it, or with non-ADR goods. (ADR 4.1.4.1, P203, 4.1.10.4, MP9; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T75: Portable tank instruction for refrigerated liquefied gases: the tank follows 4.2.3 and the design rules of 6.7.4. Portable tank provision TP5: The filling restrictions of 4.2.3.6 must be respected. Tank code RxBN: ADR tank code for Class 2 gases: refrigerated liquefied gas tank, X (test pressure from 4.3.3.2.5), openings B, valves/devices N. — R: tank for refrigerated liquefied gases; X: the minimum relevant test pressure taken from the table in 4.3.3.2.5 for the gas; B: tank filled or discharged from the bottom through openings having 3 closures; or a battery-vehicle/MEGC with openings below the liquid surface or for compressed gases; N: safety valve conforming to 6.8.3.2.9 / 6.8.3.2.10 that is not hermetically closed Tank provision TU18: Filling kept low enough that liquid heated to the safety-valve opening pressure would fill no more than 95 % of capacity; 4.3.2.3.4 not applied. Tank provision TE26: Flammable refrigerated liquefied gas tanks: every filling and discharge connection needs an instant-closing automatic stop-valve close to the tank. Tank provision TA4: Conformity assessment under 1.8.7 by the competent authority or an inspection body to 1.8.6.3 accredited to EN ISO/IEC 17020:2012 type A. Tank provision TT9: Inspections and tests, including supervision of manufacture, under 1.8.7 by the competent authority or a type A accredited inspection body. 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 T75, 4.2.5.3, TP5, 4.3.3.1.1, tank code RxBN, 4.3.5, TU18, 6.8.4 (b), TE26, 6.8.4 (c), TA4, 6.8.4 (d), TT9, 9.1.1.2, FL vehicle; paraphrase, not yet reviewed)
Carriage
Carriage provision V5: These packages must not be carried in small containers. Loading provision CV9: Do not throw packages or subject them to impact; stow receptacles so they cannot tip over or fall. Loading provision CV11: Keep receptacles in their designed position and protect them from damage by other packages. Loading provision CV36: Prefer open or ventilated units; if closed, isolate the cab from the load and mark doors "WARNING NO VENTILATION OPEN WITH CAUTION" (≥ 25 mm). Operation provision S2: Flammable liquids/gases: no ordinary portable lights in closed load compartments; FL heaters off during loading; earth FL vehicles before filling. Operation provision S17: Chapter 8.4 vehicle supervision applies when the total mass in the vehicle exceeds 1 000 kg. (ADR 7.2.4, V5, 7.5.11, CV9, 7.5.11, CV11, 7.5.11, CV36, 8.5, S2, 8.5, S17; 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 1972Class 2 — Gases
Packing Group
N/A
Not applicable
Classification Code
3F
Tunnel Code
(B/D) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
223
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 392
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 392

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

Check if UN 1972 qualifies for 1.1.3.6 exemption
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Other Gases near UN 1972 (Class 2)

UN 1969
ISOBUTANE
UN 1970
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UN 1971
METHANE, COMPRESSED or NATURAL G…
UN 1973
CHLORODIFLUORO-METHANE AND CHLOR…
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All Class 2 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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