Publisher Summary This chapter addresses chemical emergency preparedness on two levels. It begins with chemical risks that originate outside the home and then focuses on those that are in the home. There is no place where people live or work that is completely free from the risks of hazardous chemical exposures. Toxic industrial chemicals are stored and used in large quantities across highly populated areas. They are also transported in large quantities on trucks or trains through nearly every rural town on the map. Even many common household products can be dangerous if improperly stored or used. Also, bombings have become more sophisticated and more lethal over the past several years. If recent trends continue, it is likely that bombings will occur in nations that have rarely seen them. This creates tremendous challenges for the general public and response communities alike. High-risk buildings must consider the physical security measures in place and determine if they adequately address the threat of a bomb being mailed, carried, or driven into the building. Measures may be taken to enhance the ability to screen incoming persons and mail for suspicious materials and distance must be established between vehicle access and buildings. Everyone at risk needs to understand the proper approach to an identified threat and be able to carry out proper identification, reporting, and evacuation. Those working in the first responder and healthcare communities also must be aware of the differences between a bomb scene and other disasters. The risks are unusual, the patients are different, and the steps taken to properly manage the scene are distinctive. To reduce morbidity and mortality associated with these threats, it requires careful planning, training, and exercises.