Material Threat Assessment (MTA)
Material Threat Assessment (MTA) : "Material Threat Assessment refers to an official estimate of the magnitude and severity of the threat that a specific CBRN agent poses to the U.S. population, based on scientific evidence and classified intelligence information of plausible worse case scenarios". (HHS, Pandemic and All-Hazards Preparedness Act Progress Report, November 2007, Appendix 1, Abbreviations and Glossary)