UN1999 — Tars, liquid

Class 3

Quick facts: UN1999

What it is
Tars, liquid including road oils and cutback bitumens
Hazard class
3
Packing group
II, III
Label
Class 3 - Flammable Liquid
Packaging & limits
Differ by packing group: see the UN1999 rows of the 49 CFR 172.101 table.

Source: 49 CFR 172.101 Hazardous Materials Table — UN1999 (2025-01-01)

UN Number
UN1999
Hazard Class
3
Packing Group
Not assigned

Hazard Labels / Marks

  • Class 3 - Flammable Liquid

Note

Packing group varies (II/III) by concentration or form per the §172.101 row — verify against the current edition for your material.

Source: 49 CFR §172.101 Hazardous Materials Table · 49 CFR §172.101 (2025-01-01)

Reference data transcribed from the published Dangerous Goods List. It is not legal advice and may not capture entry-specific exceptions, special provisions or packing-group ranges. Always verify against the current regulation edition for a specific shipment.

This is the reference entry for UN1999.

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