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 3370 through 3419

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
3370113Urea nitrate, wetted with not less than 10% water
33711292-Methylbutanal
3372138Organometallic compound, solid, water-reactive, flammable, n.o.s.
3373158Biological substance, category B
3373158Clinical specimens
3373158Diagnostic specimens
3374116Acetylene, solvent free
3375140Ammonium nitrate emulsion
3375140Ammonium nitrate gel
3375140Ammonium nitrate suspension
33761134-Nitrophenylhydrazine, with not less than 30% water
3377140Sodium perborate monohydrate
3378140Sodium carbonate peroxyhydrate
3379128Desensitized explosive, liquid, n.o.s.
3380133Desensitized explosive, solid, n.o.s.
3381151Poisonous by inhalation liquid, n.o.s. (Inhalation Hazard Zone A) Yes
3381151Toxic by inhalation liquid, n.o.s. (Inhalation Hazard Zone A) Yes
3382151Poisonous by inhalation liquid, n.o.s. (Inhalation Hazard Zone B) Yes
3382151Toxic by inhalation liquid, n.o.s. (Inhalation Hazard Zone B) Yes
3383131Poisonous by inhalation liquid, flammable, n.o.s. (Inhalation Hazard Zone A) Yes
3383131Toxic by inhalation liquid, flammable, n.o.s. (Inhalation Hazard Zone A) Yes
3384131Poisonous by inhalation liquid, flammable, n.o.s. (Inhalation Hazard Zone B) Yes
3384131Toxic by inhalation liquid, flammable, n.o.s. (Inhalation Hazard Zone B) Yes
3385139Poisonous by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone A) Yes
3385139Toxic by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone A) Yes
3386139Poisonous by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone B) Yes
3386139Toxic by inhalation liquid, water-reactive, n.o.s. (Inhalation Hazard Zone B) Yes
3387142Poisonous by inhalation liquid, oxidizing, n.o.s. (Inhalation Hazard Zone A) Yes
3387142Toxic by inhalation liquid, oxidizing, n.o.s. (Inhalation Hazard Zone A) Yes
3388142Poisonous by inhalation liquid, oxidizing, n.o.s. (Inhalation Hazard Zone B) Yes
3388142Toxic by inhalation liquid, oxidizing, n.o.s. (Inhalation Hazard Zone B) Yes
3389154Poisonous by inhalation liquid, corrosive, n.o.s. (Inhalation Hazard Zone A) Yes
3389154Toxic by inhalation liquid, corrosive, n.o.s. (Inhalation Hazard Zone A) Yes
3390154Poisonous by inhalation liquid, corrosive, n.o.s. (Inhalation Hazard Zone B) Yes
3390154Toxic by inhalation liquid, corrosive, n.o.s. (Inhalation Hazard Zone B) Yes
3391135Organometallic substance, solid, pyrophoric
3392135Organometallic substance, liquid, pyrophoric
3393135Organometallic substance, solid, pyrophoric, water-reactive
3394135Organometallic substance, liquid, pyrophoric, water-reactive
3395135Organometallic substance, solid, water-reactive
3396138Organometallic substance, solid, water-reactive, flammable
3397138Organometallic substance, solid, water-reactive, self-heating
3398135Organometallic substance, liquid, water-reactive
3399138Organometallic substance, liquid, water-reactive, flammable
3400138Organometallic substance, solid, self-heating
3401138Alkali metal amalgam, solid
3402138Alkaline earth metal amalgam, solid
3403138Potassium, metal alloys, solid
3404138Potassium sodium alloys, solid
3404138Sodium potassium alloys, solid
3405141Barium chlorate, solution
3406141Barium perchlorate, solution
3407140Chlorate and Magnesium chloride mixture, solution
3407140Magnesium chloride and Chlorate mixture, solution
3408141Lead perchlorate, solution
3409152Chloronitrobenzenes, liquid
34101534-Chloro-o-toluidine hydrochloride, solution
3411153beta-Naphthylamine, solution
3411153Naphthylamine (beta) , solution
3412153Formic acid, with not less than 10% but not more than 85% acid
3412153Formic acid, with not less than 5% but less than 10% acid
3413157Potassium cyanide, solution
3414157Sodium cyanide, solution
3415154Sodium fluoride, solution
3416153Chloroacetophenone, liquid
3417152Xylyl bromide, solid
34181512,4-Toluylenediamine, solution
3419157Boron trifluoride acetic acid complex, solid

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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