UNunnums
1993

UN 1993Flammable liquids, n.o.s.

Class 3

Flammable liquids

Summary

UN 1993 is the UN number for flammable liquids, n.o.s. It is classed in Class 3 (flammable liquids) for transport. Packing group I, II or III, depending on the form. Emergency responders use ERG guide 128.

Emergency response

The Emergency Response Guidebook (ERG2024) guide for this number:

  • Guide128Combustible liquid, n.o.s.Compounds, cleaning liquid (flammable)Compounds, tree or weed killing, liquid (flammable)Diesel fuelFlammable liquid, n.o.s.Fuel oil

From the 2024 Emergency Response Guidebook (ERG2024), published by U.S. Department of Transportation, PHMSA. Read the full guide in the ERG or on CAMEO Chemicals.

Identification

UN number
UN 1993
Name
Flammable liquids, n.o.s.
Hazard class
Class 3: Flammable liquids
Packing group
I, II, III
What the class covers
Flammable liquids (and, in the U.S., combustible liquids).

U.S. Hazardous Materials Table

12 entries share this number in 49 CFR 172.101, by name, packing group or where the shipment is going.

  • UN1993Flammable liquids, n.o.s.

    • Technical name required in parentheses

    Special provisions: T11, TP1, TP27

    Class
    3
    Packing group
    I
    Labels
    3

  • UN1993Flammable liquids, n.o.s.

    • Technical name required in parentheses

    Special provisions: IB2, T7, TP1, TP8, TP28

    Class
    3
    Packing group
    II
    Labels
    3

  • UN1993Flammable liquids, n.o.s.

    • Technical name required in parentheses

    Special provisions: B1, B52, IB3, T4, TP1, TP29

    Class
    3
    Packing group
    III
    Labels
    3

  • NA1993Combustible liquid, n.o.s.

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: 148, IB3, T1, TP1

    Class
    Comb liq
    Packing group
    III
    Labels
    None

  • NA1993Compounds, cleaning liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: T11, TP1

    Class
    3
    Packing group
    I
    Labels
    3

  • NA1993Compounds, cleaning liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: IB2, T7, TP1, TP8, TP28

    Class
    3
    Packing group
    II
    Labels
    3

  • NA1993Compounds, cleaning liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: B1, B52, IB3, T4, TP1, TP29

    Class
    3
    Packing group
    III
    Labels
    3

  • NA1993Compounds, tree killing, liquid or Compounds, weed killing, liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: T11, TP1

    Class
    3
    Packing group
    I
    Labels
    3

  • NA1993Compounds, tree killing, liquid or Compounds, weed killing, liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: IB2, T7, TP1, TP8, TP28

    Class
    3
    Packing group
    II
    Labels
    3

  • NA1993Compounds, tree killing, liquid or Compounds, weed killing, liquid

    • U.S. domestic shipments only
    • Technical name required in parentheses

    Special provisions: B1, B52, IB3, T4, TP1, TP29

    Class
    3
    Packing group
    III
    Labels
    3

  • NA1993Diesel fuel

    • U.S. domestic shipments only

    Special provisions: 144, B1, IB3, T4, TP1, TP29

    Class
    3
    Packing group
    III
    Labels
    None

  • NA1993Fuel oil

    (No. 1, 2, 4, 5, or 6)

    • U.S. domestic shipments only

    Special provisions: 144, B1, IB3, T4, TP1, TP29

    Class
    3
    Packing group
    III
    Labels
    3

From the eCFR edition of 49 CFR 172.101 dated 2026-10-05 (section last amended 2026-09-08). The eCFR is an editorial compilation, not the official legal edition. Read the current table.

About Class 3

Class 3 covers flammable liquids such as gasoline, diesel, solvents, paints and alcohols. In the United States, some liquids with higher flash points can also be shipped as combustible liquids under the same class.

See all Class 3 UN numbers

Check the official sources

For emergency response, packaging and quantity limits, use these: