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.

Chloropicrin and Methyl c ==> Cobalt resinate, precipit

Name of MaterialGuideUN#ISO
Current as of: Oct. 2, 2011
Chloropicrin and Methyl chloride mixture1191582Yes
Chloropicrin mixture, n.o.s.1541583Yes
Chloropivaloyl chloride1569263Yes
Chloroplatinic acid, solid1542507
Chloroprene, stabilized131P1991
Chlorosilanes, corrosive, flammable, n.o.s.1552986
Chlorosilanes, corrosive, n.o.s.1562987
Chlorosilanes, flammable, corrosive, n.o.s.1552985
Chlorosilanes, n.o.s.1552985
Chlorosilanes, n.o.s.1552986
Chlorosilanes, n.o.s.1562987
Chlorosilanes, n.o.s.1392988
Chlorosilanes, poisonous, corrosive, flammable, n.o.s.1553362
Chlorosilanes, poisonous, corrosive, n.o.s.1563361
Chlorosilanes, toxic, corrosive, flammable, n.o.s.1553362
Chlorosilanes, toxic, corrosive, n.o.s.1563361
Chlorosilanes, water-reactive, flammable, corrosive, n.o.s.1392988
Chlorosulfonic acid1371754Yes
Chlorosulfonic acid and Sulfur trioxide mixture1371754Yes
Chlorosulphonic acid1371754Yes
Chlorosulphonic acid and Sulphur trioxide mixture1371754Yes
Chlorotetrafluoroethane1261021
Chlorotetrafluoroethane and Ethylene oxide mixture, with not more than 8.8% Ethylene oxide1263297
Chlorotoluenes1292238
Chlorotoluidines1532239
Chlorotoluidines, liquid1532239
Chlorotoluidines, liquid1533429
Chlorotoluidines, solid1532239
Chlorotrifluoroethane1261983
Chlorotrifluoromethane1261022
Chlorotrifluoromethane and Trifluoromethane azeotropic mixture with approximately 60% Chlorotrifluoromethane1262599
Chromic acid, solid1411463
Chromic acid, solution1541755
Chromic fluoride, solid1541756
Chromic fluoride, solution1541757
Chromium nitrate1412720
Chromium oxychloride1371758
Chromium trioxide, anhydrous1411463
Chromosulfuric acid1542240
Chromosulphuric acid1542240
CK1251589
Clinical specimens1583373
Clinical waste, unspecified, n.o.s.1583291
CN1531697
Coal gas1191023Yes
Coal gas, compressed1191023Yes
Coal tar distillates, flammable1281136
Coating solution1271139
Cobalt naphthenates, powder1332001

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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