UN 3291

CLINICAL WASTE, UNSPECIFIED, N.O.S. or (BIO) MEDICAL WASTE, N.O.S. or REGULATED MEDICAL WASTE, N.O.S.

Class 6.2 — Toxic & Infectious Substances2 variants
UN 3291 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 3291Class 6.2 — Toxic & Infectious SubstancesVariant 1 of 2
CLINICAL WASTE, UNSPECIFIED, N.O.S. or (BIO) MEDICAL WASTE, N.O.S. or REGULATED MEDICAL WASTE, N.O.S.
Packing Group
N/A
Not applicable
Classification Code
I3
Tunnel Code
(-)
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
606
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Hazard Labels Required
Label 6.2

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

Special Provisions
SP 565

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

UN 3291Class 6.2 — Toxic & Infectious SubstancesVariant 2 of 2
CLINICAL WASTE, UNSPECIFIED, N.O.S. or (BIO) MEDICAL WASTE, N.O.S. or REGULATED MEDICAL WASTE, N.O.S., in refrigerated liquid nitrogen
Packing Group
N/A
Not applicable
Classification Code
I3
Tunnel Code
(-)
Code governing tunnel passage
Transport Category
2
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
Hazard Labels Required
Label 6.2Label 2.2

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

Special Provisions
SP 565

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

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Other Toxic & Infectious Substances (Class 6)

UN 1051
HYDROGEN CYANIDE, STABILIZED con…
UN 1092
ACROLEIN, STABILIZED
UN 1098
ALLYL ALCOHOL
UN 1135
ETHYLENE CHLOROHYDRIN
UN 1143
CROTONALDEHYDE or CROTONALDEHYDE…
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified August 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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