The Wide Area Recovery and Resiliency Program (WARRP) Waste Management workshop, hosted by the Department of Homeland Security (DHS), was a two-day workshop, held in Denver, Colorado, on March 15-16, 2012. The purpose of the workshop was to advance the planning of federal, state, and local officials in the area of waste management (segregation, temporary storage, transportation, treatment, and disposal) following a chemical, biological, or radiological (CBR) wide-area incident in the Denver, Colorado, urban area. The objectives of the workshop included: Understanding the importance of preparedness for waste management in the case of an urban, wide-area CBR incident. Identifying the significant issues involving the management of CBR threat agent wastes and exploring efforts underway to address the priority issues. Learning about a draft all-hazards waste disposal management template, its application to an urban, wide-area CBR incident, and providing critical feedback to the developers.