HazMat Tool — substance information

Ammonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil

HMT May 2026

UN / ID: NA 0331
Hazard class: 1.5D
Packing group: —
ERG guide: —
Special provisions: SP 148
Source: 49 CFR §172 (2026/05)

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Ammonium nitrate-fuel oil mixture containing only prilled ammonium nitrate and fuel oil

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

1.5
Very insensitive explosives

Compatibility group of explosives - Description of substances or article to be classified

Group: D

Secondary detonating explosive substance or black powder or article containing a secondary detonating explosive substance, in each case without means of initiation and without a propelling charge, or article containing a primary explosive substance and containing two or more effective protective features.

Source: 49 CFR §173.52

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

148	For domestic transportation, this entry directs to §173.66 for: a. The standards for transporting a single bulk hazardous material for blasting by cargo tank motor vehicles (CTMV); and b. The standards for CTMVs capable of transporting multiple hazardous materials for blasting in bulk and non-bulk packagings (i.e., a multipurpose bulk truck). Note: “UN3375, Ammonium nitrate emulsion” and “UN0332, Explosive, blasting, type E or Agent blasting, type E” are subject to the United Nations (UN) Test Series 8(d) (UN/SCETDG/55/INF.27) (IBR, see §171.7), otherwise known as the Vented Pipe Test (VPT). Browse special provision 148

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	Forbidden

(10) Vessel stowage

(10A) Location

Stowage category “03” means the material may be stowed “on deck” in closed cargo transport units or “under deck” on a cargo vessel (up to 12 passengers) but the material is prohibited on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84
19E	see 49 CFR §176.84

Source: 49 CFR §176.84

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Hazard class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	Must not be loaded, transported, or stored together in the same vehicle or facility.
	May be loaded, transported, or stored together.
	May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 0222	Ammonium nitrate, with more than 0.2 percent combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance	1.1D
UN 1942	Ammonium nitrate, with not more than 0.2% combustible substances, including any organic substance calculated as carbon, to the exclusion of any other added substance	5.1
UN 0004	Ammonium picrate, dry or wetted with less than 10 percent water, by mass	1.1D
UN 1310	Ammonium picrate, wetted with not less than 10 percent water, by mass	4.1
UN 3375	Ammonium nitrate emulsion or Ammonium nitrate suspension or Ammonium nitrate gel, intermediate for blasting explosives	5.1
UN 2426	Ammonium nitrate, liquid (hot concentrated solution)	5.1
	Tetraethylammonium perchlorate (dry)	Forbidden
UN 1835	Tetramethylammonium hydroxide solution	8
UN 3423	Tetramethylammonium hydroxide, solid	8
UN 3424	Ammonium dinitro-o-cresolate solution	6.1
UN 1843	Ammonium dinitro-o-cresolate, solid	6.1
UN 2506	Ammonium hydrogen sulfate	8
UN 1727	Ammonium hydrogendifluoride, solid	8
UN 2817	Ammonium hydrogendifluoride, solution	8
UN 2067	Ammonium nitrate based fertilizer	5.1