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 3220 through 3269

UN#GuideName of MaterialISO
Current as of: Oct. 2, 2011
3220126Refrigerant gas R-125
3221149Self-reactive liquid type B
3222149Self-reactive solid type B
3223149Self-reactive liquid type C
3224149Self-reactive solid type C
3225149Self-reactive liquid type D
3226149Self-reactive solid type D
3227149Self-reactive liquid type E
3228149Self-reactive solid type E
3229149Self-reactive liquid type F
3230149Self-reactive solid type F
3231150Self-reactive liquid type B, temperature controlled
3232150Self-reactive solid type B, temperature controlled
3233150Self-reactive liquid type C, temperature controlled
3234150Self-reactive solid type C, temperature controlled
3235150Self-reactive liquid type D, temperature controlled
3236150Self-reactive solid type D, temperature controlled
3237150Self-reactive liquid type E, temperature controlled
3238150Self-reactive solid type E, temperature controlled
3239150Self-reactive liquid type F, temperature controlled
3240150Self-reactive solid type F, temperature controlled
3243151Solids containing poisonous liquid, n.o.s.
3243151Solids containing toxic liquid, n.o.s.
3244154Solids containing corrosive liquid, n.o.s.
3245171Genetically modified micro-organisms
3245171Genetically modified organisms
3246156Methanesulfonyl chlorideYes
3246156Methanesulphonyl chlorideYes
3247140Sodium peroxoborate, anhydrous
3248131Medicine, liquid, flammable, poisonous, n.o.s.
3248131Medicine, liquid, flammable, toxic, n.o.s.
3249151Medicine, solid, poisonous, n.o.s.
3249151Medicine, solid, toxic, n.o.s.
3250153Chloroacetic acid, molten
3252115Refrigerant gas R-32
3253154Disodium trioxosilicate
3253154Disodium trioxosilicate, pentahydrate
3255135tert-Butyl hypochlorite
3256128Elevated temperature liquid, flammable, n.o.s., with flash point above 37.8oC (100oF) , at or above its flash point
3256128Elevated temperature liquid, flammable, n.o.s., with flash point above 60.5oC (141oF) , at or above its flash point
3257128Elevated temperature liquid, n.o.s., at or above 100oC (212oF) , and below its flash point
3258171Elevated temperature solid, n.o.s., at or above 240oC (464oF)
3259154Amines, solid, corrosive, n.o.s.
3259154Polyamines, solid, corrosive, n.o.s.
3260154Corrosive solid, acidic, inorganic, n.o.s.
3261154Corrosive solid, acidic, organic, n.o.s.
3262154Corrosive solid, basic, inorganic, n.o.s.
3263154Corrosive solid, basic, organic, n.o.s.
3264154Corrosive liquid, acidic, inorganic, n.o.s.
3265153Corrosive liquid, acidic, organic, n.o.s.
3266154Corrosive liquid, basic, inorganic, n.o.s.
3267153Corrosive liquid, basic, organic, n.o.s.
3268171Air bag inflators
3268171Air bag inflators, pyrotechnic
3268171Air bag modules
3268171Air bag modules, pyrotechnic
3268171Seat-belt modules
3268171Seat-belt pre-tensioners
3268171Seat-belt pre-tensioners, pyrotechnic
3269128Polyester resin kit

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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