UNunnums
2071

UN 2071Ammonium nitrate fertilizers: uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, with not more than 70 percent ammonium nitrate and not more than 0.4 percent total add

Proper shipping name: Ammonium nitrate based fertilizer

Class 9

Miscellaneous dangerous goods

Summary

UN 2071 is the UN number for ammonium nitrate fertilizers: uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, with not more than 70 percent ammonium nitrate and not more than 0.4 percent total add. It is classed in Class 9 (miscellaneous dangerous goods) for transport. Packing group III. Emergency responders use ERG guide 140.

Emergency response

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

  • Guide140Ammonium nitrate based fertilizer

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 2071
Name
Ammonium nitrate fertilizers: uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, with not more than 70 percent ammonium nitrate and not more than 0.4 percent total add
Hazard class
Class 9: Miscellaneous dangerous goods
Packing group
III
What the class covers
Substances and articles which present a hazard during transport not covered by other classes, such as lithium batteries and environmentally hazardous substances.

U.S. Hazardous Materials Table

The entry for this number in 49 CFR 172.101.

  • UN2071Ammonium nitrate based fertilizer

    • Regulated only when shipped by air
    • Regulated only when shipped by water

    Special provisions: 132, B136, IB8, IP3

    Class
    9
    Packing group
    III
    Labels
    9

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 9

Class 9 covers dangerous goods that don't fit any other class, including lithium batteries, dry ice, environmentally hazardous substances, elevated-temperature materials and magnetized material.

See all Class 9 UN numbers

Check the official sources

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