The new ERG helps satisfy 49 CFR 172.602 - DOT"s requirement that hazardous materials shipments be accompanied by emergency response info. Also, the guide aids in emergency preparedness, planning, and training. 2012 Emergency Response Guidebook Summary of Changes from 2008 ERG-The cover has been updated-General Information (WHITE) pages - several sections have been moved to the back of the book-Various sections have been expanded and/or revised, including: -Shipping Documents (Papers) -How to Use this Guidebook During an Incident -User"s Guide -Isolation and Evacuation Distances -Who to Call for Assistance -Table of Placards and Initial Response Guide to Use On-Scene -Rail Car Identification Chart -Road Trailer Identification Chart -Fire and Spill Control -Pipeline Safety Information -Criminal/Terrorist Use of Chemical/Biological/Radiological Agents -Glossary -Publication Data (and related information) -Emergency Response Telephone NumbersIndex List of Dangerous Goods in Order of ID Number (YELLOW-bordered pages) and the Index List of -----Dangerous Goods in Alphabetical Order (BLUE-bordered pages):-Addition of all new dangerous goods listed in UN Recommendations on the Transport of Dangerous Goods to 17th -Revised Edition-Safety Recommendation/Emergency Response Guides ("Guides," or ORANGE-bordered pages):-Tune-up of some guidesTable of Initial Isolation and Protective Action Distances, and the Table of Water-Reactive Materials Which ----Produce Toxic Gases (GREEN-bordered pages):-Added Table 3 for six gases which are toxic by inhalation-Tune-up of Initial Isolation and Protective Action Distances-Added a Boiling Liquid Expanding Vapor Explosion (BLEVE) Chart to Fire and Spill Control Section-Added an Improvised Explosive Device (IED) Safe Standoff Distances Chart to Criminal/Terrorist Section