Safety Assessment Program Evaluator Student Manual

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CA Emergency Mgmt. Agency Safety Assessment Program Evaluator Manual April 2011The Emergency Response Guidebook (ERG) covers the hazardous materials designations asapplied to transported hazardous materials in North America and their hazards. It can bedownloaded for free as a .pdf file from the following website, as of this March 2011 version:http://phmsa.dot.gov/staticfiles/PHMSA/DownloadableFiles/Files/erg2008_eng.pdfThe Federal Department of Transportation website for the ERG in general is found at:http://phmsa.dot.gov/hazmat/library/ergERG number designations are found on DOT placards in addition to the information shownin Figure 7-10. For example, gasoline‟s ERG number is 1203, and this is seen clearly on theplacards on the back of gasoline tanker trucks. These numbers key into information found inthe ERG on how to handle these materials and what their risks are.Photo courtesy DOTFigure 7-8 – Emergency Response Guidebook7.3.1 National Fire Protection Association (NFPA) Placard SystemThis system is intended to provide basic hazardous materials information on chemicals foundwithin a structure so fire fighters, police, and other emergency personnel can make decisionswhether to evacuate an area, or commence with emergency control procedures. This systemof placard is voluntary unless it is adopted into local codes.220
CA Emergency Mgmt. Agency Safety Assessment Program Evaluator Manual April 2011The NFPA system identifies materials by their health hazard, fire hazard, reactivity, andspecific hazard. The placard used is shown in Figure 7-9 on this page. The color coding isconsistent and does not relate to the particular level of hazard; the numbers in the color codedareas relate to the level of hazard.Blue denotes the health hazard, red denotes the fire or flammability hazard, yellow denotesthe reactivity of the materials, and white denotes the specific hazard. All except the specifichazard are rated by a number system of 0 to 4, with 4 being the worst hazard and 0 being theleast.Photo courtesy NFPAFigure 7-9 – NFPA Hazardous Materials Classification System7.3.2 Department of Transportation (DOT) Placard SystemFederal DOT regulations define a hazardous material as “a substance or material, includinga hazardous substance, which has been determined by the Secretary of Transportation to becapable of posing an unreasonable risk to health, safety, and property when transported incommerce, and which has been so designated.”The DOT system is primarily used for labeling containers of transported hazardous materials.The placards are classified by hazard class names, hazard class numbers, associated color,221
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