Emergency Response Guidebook (ERG)

This is an online version of the 2008 Emergency Response Guidebook (ERG) which is produced by the USDOT for first responders during the initial phase of a Dangerous goods/Hazardous Materials incident. Have you ever wondered what those four digit numbers on the placards on the side of trucks and rail cars mean? Our online ERG will give you your answer.

UN Numbers 0000 through 1060

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
----112Ammonium nitrate-fuel oil mixtures
----158Biological agents
----112Blasting agent, n.o.s.
----112Explosive A
----112Explosive B
----114Explosive C
----112Explosives, division 1.1, 1.2, 1.3, 1.5 or 1.6
----114Explosives, division 1.4
1001116Acetylene, dissolved
1002122Air, compressed
1003122Air, refrigerated liquid (cryogenic liquid)
1003122Air, refrigerated liquid (cryogenic liquid) , non-pressurized
1005125Ammonia, anhydrousYes
1005125Anhydrous ammoniaYes
1006121Argon, compressed
1008125Boron trifluorideYes
1008125Boron trifluoride, compressedYes
1009126Refrigerant gas R-13B1
1010116PButadienes and hydrocarbon mixture, stabilized
1010116PButadienes, stabilized
1011115Butane mixture
1013120Carbon dioxide
1013120Carbon dioxide, compressed
1014122Carbon dioxide and Oxygen mixture
1014122Carbon dioxide and Oxygen mixture, compressed
1014122Oxygen and Carbon dioxide mixture
1014122Oxygen and Carbon dioxide mixture, compressed
1015126Carbon dioxide and Nitrous oxide mixture
1015126Nitrous oxide and Carbon dioxide mixture
1016119Carbon monoxideYes
1016119Carbon monoxide, compressedYes
1018126Refrigerant gas R-22
1020126Refrigerant gas R-115
1021126Refrigerant gas R-124
1022126Refrigerant gas R-13
1023119Coal gasYes
1023119Coal gas, compressedYes
1026119Cyanogen gasYes
1028126Refrigerant gas R-12
1029126Refrigerant gas R-21
1030115Refrigerant gas R-152a
1032118Dimethylamine, anhydrous
1033115Dimethyl ether
1035115Ethane, compressed
1037115Ethyl chloride
1038115Ethylene, refrigerated liquid (cryogenic liquid)
1039115Ethyl methyl ether
1039115Methyl ethyl ether
1040119PEthylene oxideYes
1040119PEthylene oxide with NitrogenYes
1041115Carbon dioxide and Ethylene oxide mixture, with more than 9% but not more than 87% Ethylene oxide
1041115Carbon dioxide and Ethylene oxide mixtures, with more than 6% Ethylene oxide
1041115Ethylene oxide and Carbon dioxide mixture, with more than 9% but not more than 87% Ethylene oxide
1041115Ethylene oxide and Carbon dioxide mixtures, with more than 6 % Ethylene oxide
1043125Fertilizer, ammoniating solution, with free Ammonia
1044126Fire extinguishers with compressed gas
1044126Fire extinguishers with liquefied gas
1045124Fluorine, compressedYes
1046121Helium, compressed
1048125Hydrogen bromide, anhydrousYes
1048125Hydrogen bromide, anhydrousYes
1049115Hydrogen, compressed
1050125Hydrogen chloride, anhydrousYes
1051117Hydrocyanic acid, aqueous solutions, with more than 20% Hydrogen cyanideYes
1051117Hydrogen cyanide, anhydrous, stabilizedYes
1051117Hydrogen cyanide, stabilizedYes
1052125Hydrogen fluoride, anhydrousYes
1053117Hydrogen sulfideYes
1053117Hydrogen sulphideYes
1056121Krypton, compressed
1057115Lighter refills (cigarettes) (flammable gas)
1057115Lighters (cigarettes) (flammable gas)
1058120Liquefied gases, non-flammable, charged with Nitrogen, Carbon dioxide or Air
1060116PMethylacetylene and Propadiene mixture, stabilized
1060116PPropadiene and Methylacetylene mixture, stabilized

Data Source for our online 2008 ERG

This information was compiled from the 2008 Emergency Response Guidebook (2008 ERG) which is produced by the U.S. Department of Transportation.

(Data last updated/verified: Oct. 2, 2011)

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WARNING: These pages are for general reference and educational purposes only and MUST NOT be relied upon as a sole source to determine regulatory compliance or where matters of life and health are concerned. This site and the author do not warrant or guarantee the accuracy or the sufficiency of the information provided and do not assume any responsibility for its use.

To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.

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