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<!DOCTYPE HTML> <HTML lang="en-US"><head><META http-equiv="Content-Type" content="text/html; charset=utf-8"><title>Emergency Response Guidebook (ERG) (EnvironmentalChemistry.com)</title><META NAME="ROBOTS" CONTENT="NOARCHIVE"> <meta name="superfish" content="nofish"><META NAME="ROBOTS" CONTENT="NOODP"><META NAME="DESCRIPTION" CONTENT="This is an online version of the DOT/PHMSA 2008 ERG (Emergency Response Guidebook) which is produced by the USDOT for first responders during the initial phase of a Dangerous goods/Hazardous Materials incident."><META NAME="KEYWORDS" CONTENT="2008 ERG, 2008 Emergency Response Guidebook, chemical compounds, chemical elements, chemical reactions, chemical formulas, chemicals, hazardous chemicals, chemical information, chemical database, chemical compound database, searchable database of chemical compounds,teacher resources,educational resources,careers,science articles,environmental issues,science"><META NAME="revisit-after" content="30 days"><SCRIPT type="text/javascript">if(top.location!=location){top.location.href=document.location.href}</script><link rel="canonical" href="https://EnvironmentalChemistry.com/yogi/hazmat/erg/"><link rel="alternate" type="application/rss+xml" title="RSS" href="/feed.xml" ><link rel="shortcut icon" href="https://envirochem.us/favicon.ico" type="image/x-icon"><link type="text/css" rel="stylesheet" media="all" href="https://envirochem.us/css/Main20170126.css"><link type="text/css" rel="stylesheet" media="screen" href="https://envirochem.us/css/screen20120422.css"><LINK rel="stylesheet" type="text/css" href="https://envirochem.us/css/printer.css" media="print"></head><BODY><div class="MB"><header><div class="TA"><a href="https://EnvironmentalChemistry.com/" title="EnvironmentalChemistry.com homepage & site map">EnvironmentalChemistry.com</a></div><div class="TB"><a href="/yogi/environmental" title="Environmental articles and resources" class="TBA">Environmental</a>, <a href="/yogi/chemistry/" title="Chemistry resources" class="TBA">Chemistry</a> & <a href="/yogi/hazmat/" title="Hazardous materials and regulatory resources" class="TBA">Hazardous Materials</a> News, <a href="/careers/" class="TBA">Careers</a> & Resources</div></header><script type="text/javascript">var strChemistry='',strEnvironmental='',strHazMat=' Selected',strCareers='',strHeadlines='';document.write(TopMenu());</script><div class="W"><div class="CA"><div class="BA"><ul class="Handheld"><li><a href="#Content">Skip to page content</a><li><A HREF="#Menu">Skip to site menu on this page</a></ul><script type="text/javascript">document.writeln(printInstructions());</script><span id="Content"></span><h1><a href="https://EnvironmentalChemistry.com/yogi/hazmat/erg/">Emergency Response Guidebook (ERG)</a></h1><p class="TextSmall">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.</p> <div class="ERGMenu NoPrint"><h2 class="ERGMenuH2">ERG Menu</h2> <ul><li>List Materials: <ul><li style="margin-top:0"><a href="/yogi/hazmat/erg/">By UN Number</a> <li style="margin-top:0"><a href="/yogi/hazmat/erg/ob/name.html">By Material Name</a> </ul> <li style="margin-top:0"><a href="/yogi/hazmat/erg/gn/list.html">Guide Pages</a> <li style="margin-top:0"><a href="/yogi/hazmat/erg/ii/1005-1082.html">Table of Initial Isolation and Protective Action Distances</a> <li style="margin-top:0"><a href="/yogi/hazmat/erg/wr/list.html">Table of Water-Reactive Materials Which Produce Toxic Gases</a> <li style="margin-top:0"><a href="/yogi/hazmat/placards/" title="This leads to our placarding section which contains links to guide pages for each placard">Placards and Initial Response Guides</a> <li style="margin-top:0">Notes: <ul><li style="margin-top:0"><a href="/yogi/hazmat/erg/isointro.html">Introduction to the Table of Initial Isolation and Protective Action Distances</a> <li style="margin-top:0"><a href="/yogi/hazmat/erg/ProtectiveFactors.html">Protective Action Decision Factors to Consider</a> <li style="margin-top:0"><a href="/yogi/hazmat/erg/ProtectiveTableNotes.html">How to use the table of initial isolation and protective action distances</a> </ul> </ul></div> <h2>2008 ERG sorted by UN Number</h2><ul><li><a href="/yogi/hazmat/erg/sl/0000|1060.html"><abbr title="No UN Number">----</abbr> <i>==></i> 1060</A><li><a href="/yogi/hazmat/erg/sl/1061|1128.html">1061 <i>==></i> 1128</A><li><a href="/yogi/hazmat/erg/sl/1129|1189.html">1129 <i>==></i> 1189</A><li><a href="/yogi/hazmat/erg/sl/1190|1251.html">1190 <i>==></i> 1251</A><li><a href="/yogi/hazmat/erg/sl/1259|1322.html">1259 <i>==></i> 1322</A><li><a href="/yogi/hazmat/erg/sl/1323|1382.html">1323 <i>==></i> 1382</A><li><a href="/yogi/hazmat/erg/sl/1383|1442.html">1383 <i>==></i> 1442</A><li><a href="/yogi/hazmat/erg/sl/1444|1499.html">1444 <i>==></i> 1499</A><li><a href="/yogi/hazmat/erg/sl/1500|1579.html">1500 <i>==></i> 1579</A><li><a href="/yogi/hazmat/erg/sl/1580|1638.html">1580 <i>==></i> 1638</A><li><a href="/yogi/hazmat/erg/sl/1639|1695.html">1639 <i>==></i> 1695</A><li><a href="/yogi/hazmat/erg/sl/1697|1753.html">1697 <i>==></i> 1753</A><li><a href="/yogi/hazmat/erg/sl/1754|1807.html">1754 <i>==></i> 1807</A><li><a href="/yogi/hazmat/erg/sl/1808|1868.html">1808 <i>==></i> 1868</A><li><a href="/yogi/hazmat/erg/sl/1869|1950.html">1869 <i>==></i> 1950</A><li><a href="/yogi/hazmat/erg/sl/1951|2005.html">1951 <i>==></i> 2005</A><li><a href="/yogi/hazmat/erg/sl/2006|2068.html">2006 <i>==></i> 2068</A><li><a href="/yogi/hazmat/erg/sl/2069|2232.html">2069 <i>==></i> 2232</A><li><a href="/yogi/hazmat/erg/sl/2233|2284.html">2233 <i>==></i> 2284</A><li><a href="/yogi/hazmat/erg/sl/2285|2336.html">2285 <i>==></i> 2336</A><li><a href="/yogi/hazmat/erg/sl/2337|2389.html">2337 <i>==></i> 2389</A><li><a href="/yogi/hazmat/erg/sl/2390|2443.html">2390 <i>==></i> 2443</A><li><a href="/yogi/hazmat/erg/sl/2444|2505.html">2444 <i>==></i> 2505</A><li><a href="/yogi/hazmat/erg/sl/2506|2574.html">2506 <i>==></i> 2574</A><li><a href="/yogi/hazmat/erg/sl/2576|2645.html">2576 <i>==></i> 2645</A><li><a href="/yogi/hazmat/erg/sl/2646|2710.html">2646 <i>==></i> 2710</A><li><a href="/yogi/hazmat/erg/sl/2711|2767.html">2711 <i>==></i> 2767</A><li><a href="/yogi/hazmat/erg/sl/2768|2822.html">2768 <i>==></i> 2822</A><li><a href="/yogi/hazmat/erg/sl/2823|2905.html">2823 <i>==></i> 2905</A><li><a href="/yogi/hazmat/erg/sl/2907|2977.html">2907 <i>==></i> 2977</A><li><a href="/yogi/hazmat/erg/sl/2978|3027.html">2978 <i>==></i> 3027</A><li><a href="/yogi/hazmat/erg/sl/3028|3108.html">3028 <i>==></i> 3108</A><li><a href="/yogi/hazmat/erg/sl/3109|3158.html">3109 <i>==></i> 3158</A><li><a href="/yogi/hazmat/erg/sl/3159|3219.html">3159 <i>==></i> 3219</A><li><a href="/yogi/hazmat/erg/sl/3220|3269.html">3220 <i>==></i> 3269</A><li><a href="/yogi/hazmat/erg/sl/3270|3319.html">3270 <i>==></i> 3319</A><li><a href="/yogi/hazmat/erg/sl/3320|3369.html">3320 <i>==></i> 3369</A><li><a href="/yogi/hazmat/erg/sl/3370|3419.html">3370 <i>==></i> 3419</A><li><a href="/yogi/hazmat/erg/sl/3420|3469.html">3420 <i>==></i> 3469</A><li><a href="/yogi/hazmat/erg/sl/3470|9279.html">3470 <i>==></i> 9279</A></ul><h3 id="Trademarks">Data Source for our online 2008 ERG</h3><div class="TextXSmall"><p>This information was compiled from the 2008 Emergency Response Guidebook (2008 ERG) which is produced by the U.S. Department of Transportation.</p><p>(Data last updated/verified: Oct. 2, 2011)</p></div><h3>Related Resources</h3><ul class="Headlines"><li class="HLI"><a href="/yogi/environmental/household.html">Guide for Handling Household Chemicals</a><br><span class="IndexTS">Things you can do to make your home safer.</span><li class="HLI"><A HREF="/yogi/hazmat/table/" >USDOT Hazardous Materials Table 49 CFR 172.101</a><br><span 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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.</p><p class="Disclaimer">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.</p><h3>Citing this page</h3><p>If you need to cite this page, you can copy this text:</p><p id="idCitePage" class="CiteLink">Kenneth Barbalace. Emergency Response Guidebook (ERG). EnvironmentalChemistry.com. 1995 - 2024. 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If a plastic makes it into the recycling loop, it will go through many processes before it emerges as a recycled p...">Plastics - From Recycling Bin to New Product</A><li><A HREF="/yogi/environmental/200705rohs.html" title="The European Union (EU) member states are taking action and holding manufacturers responsible for the hazardous materials in their products.">RoHS: Europe's Initiative to Control Technological Waste</A><li><A HREF="/yogi/environmental/medicalwaste.html" title="Gives insight as to how medical waste is disposed of in America.">Treatment of Biohazardous Waste</A><li><A HREF="/yogi/environmental/wastehistory.html" title="Do you want to be a Garbologist?">The History of Waste</A></ul></ul><h3 class="H3M">Chemistry</h3><ul class="PMenu"><li><div>Articles</div><ul class="SM"><li><A HREF="/yogi/periodic/atom_anatomy.html" title="Explains the structure of atoms and how this affects the way they interact with each other.">Anatomy of the Atom</A><li><A HREF="/yogi/chemistry/pcb.html" title="PCB, The Manmade Chemicals That Won't Go Away">The Chemistry of Polychlorinated Biphenyls</A><li><A HREF="/yogi/reference/molar.html" title="A tutorial on Molar mass calculations with examples and a molecular weight calculator to aid calculations.">Molar Mass Calculations and Molecular Weight Calculator</A><li><A HREF="/yogi/chemistry/MolarityMolalityNormality.html" title="Introduces stoichiometry and explains the differences between molarity, molality and normality.">Stoichiometry: Molarity, Molality and Normality</A><li><A HREF="/yogi/chemistry/200609fluorine.html" title="Fluoride's derivatives have many uses other than as a mouthwash.">What You Do and Don't Know About Fluorine</A></ul><li><div>Reference Resources</div><ul class="SM"><li><A HREF="/yogi/chemicals/" title="An indexed directory of common chemicals used in industry and household products.">Chemical Database</A><li><A HREF="/yogi/chemistry/dictionary/index.html" title="Defines many of the technical terms and acronyms used on this site as well as many other terms.">Chemistry Dictionary</A><li><A HREF="/yogi/periodic/" title="Comprehensive data for each element of the periodic table including up to 40 properties, common chemical compounds. Information also provided for 3...">Periodic Table of Elements</A><li><label for="PTOEDDD">Sort periodic table by: <select onchange="window.location='/yogi/periodic/'+this.options[this.selectedIndex].value+'.html'" id="PTOEDDD"><option SELECTED>select order<option value="atomicradius">Atomic Radius<option value="boilingpoint">Boiling Point<option value="covalentradius">Covalent Radius<option value="crosssection">Cross Section<option value="crystal">Crystal Structure<option value="density">Density<option value="electrical">Electrical Conductivity<option value="electronegativity">Eletronegativity<option value="meltingpoint">Freezing Point<option value="vaporization">Heat of Vaporization<option value="ionicradius">Ionic Radius<option value="1stionization">Ionization Potential<option value="mass">Mass Average<option value="meltingpoint">Melting Point<option value="name">Name<option value="index">Periodic Table<option value="series">Series<option value="symbol">Symbol<option value="thermal">Thermal Conductivity<option value="year">Year of Discovery</select></label></ul></ul><h3 class="H3M">Hazardous Materials</h3><ul class="PMenu"><li><div>Household</div><ul class="SM"><li><A HREF="/yogi/environmental/household.html" title="There are a lot of dangerous chemicals in your home. Here are some things to do to make it safer.">Guide to Handling Household Chemicals</A><li><A HREF="/yogi/hazmat/200606lawnchemicals.html" title="Each year consumers paint their lawns with various fertilizers, herbicides and pesticides. These chemicals can be deadly if used incorrectly.">The Dangers of Lawn Chemicals at Home</A></ul><li><div>Industry</div><ul class="SM"><li><A HREF="/yogi/hazmat/erg/" title="An online version of the USDOT ERG which is for first responders during the initial phase of a HazMat incident.">Emergency Response Guidebook (ERG)</A><ul class="SM"><li>List materials by<ul class="SM"><li><A HREF="/yogi/hazmat/erg/">UN Number</A><li><A HREF="/yogi/hazmat/erg/ob/name.html">Material Name</A></ul></ul><li><A HREF="/yogi/hazmat/table/" title="USDOT hazardous materials table from 49CFR 172.101.">49CFR USDOT Hazardous Materials Table</A><li><A HREF="/yogi/hazmat/placards/" title="Images and definitions of hazardous materials placards required by the USDOT when transporting dangerous goods.">USDOT HazMat Placards</A><ul class="SM"><li><label for="PlacardDD" title="Select hazard class/division"><select onchange="window.location='/yogi/hazmat/placards/'+this.options[this.selectedIndex].value+'.html'" id="PlacardDD"><option SELECTED> Select Class/Div.<option value="class1">1 Explosives<option value="class2">2 Compressed Gas<option value="class3">3 Flammable Liquid<option value="class4">4 Flammable Solids<option value="class5">5 Oxidizers<option value="class6">6.1 Poisons<option value="class7">7 Radioactives<option value="class8">8 Corrosives<option value="class9">9 Miscellaneous<option value="etc">Related Markings</select></label></ul><li><A HREF="/yogi/hazmat/compliance/quiz.html" title="Test your knowledge of USDOT HazMat placarding regulations (49CFR).">Placarding Quiz</A><li><A HREF="/yogi/hazmat/placards/PlacardingCD.html" title="Contains clipart versions of hazmat placards. Includes USDOT hazmat transportation training modules as a free bonus.">USDOT HazMat Placards CD & training modules</A><li><A HREF="/yogi/hazmat/compliance/200601ExceptionsExemptionsVariances.html" title="All Leniencies are not created equally, what are the differences?">Exceptions, Exemptions and Variances</A><li><A HREF="/yogi/hazmat/compliance/HazMatTransportionPermitSystem.html" title="Federal Motor Carrier Safety Administration's hazardous materials transportation permitting system.">FMCSA HazMat Transportion Permit System</A></ul></ul></nav></div></div><div class="VB ColumnHeight ScreenOnly"></div></div><nav><div class="BN"><ul class="BNUL"><li class="BNLI"><A href="/yogi/privacy.html" class="BNA">Privacy Statement</A><li class="BNLI"><A href="/terms.html" class="BNA">Terms of Service</A><li class="BNLI"><a href="/yogi/about.html" class="BNA">About Us</a><li class="BNLI"><a href="/" class="BNA">Site Directory</a><li class="BNLI"><A href="/contact.html" class="BNA">Contact Us</a><li class="BNLI"><A href="http://twitter.com/envirochem" class="BNA">Follow Us on Twitter</a></ul></div></nav><footer><div class="Copyright">Copyright 1995 - 2024 Kenneth L Barbalace (<a href="https://KLBProductions.com/" title="Custom website development and database application development in Saco Maine.">J.K. 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