Event 19 : Any real-time occurrence or significant deviation from planned or expected behavior that could endanger or adversely affect people, property, or the environment
Training Resources And Data Exchange (TRADE), Emergency Management Issues Special Interest Group Glossary Task Force, Glossary and Acronyms of Emergency Management Terms (3rd Ed.), Prepared under a contract between/for the Office of Emergency Management US Department of Energy and Oak Ridge Associated Universities (ORAU), TRADE/EMI SIG 1999. https://orise.orau.gov/emi/training-products/files /glossary-emt.pdf, (Emr Mgt/ Haz Mtrl (Rad and Non-Rad) - Amer) {483}