The EPA published a notice of availability of the Draft Munitions and Explosives of Concern (MEC) Hazard Assessment Guidance in the Federal Register. The hazard assessment model was put together by the Technical Working Group for Hazard Assessments which was made up of representatives from the EPA, DoD, Department of the Interior, various State regulatory agencies, and Tribes. The MEC Hazard Assessment model evaluates explosives safety risk by looking at three components severity, accessibility, and sensitivity. There are various input parameters that make up each of the 3 components. In all, there are nine separate input factors or parameters that are assessed for each site including 2 for the severity component, 5 for the accessibility component, and 2 for the sensitivity component.