Emergency Action Level Development
Each operating nuclear power plant must include a standard emergency classification and Emergency Action Level (EAL) scheme in its emergency plans. EALs are pre-determined, site-specific, observable triggers for placing the plant in a classification such as an Unusual Event, Alert, Site-Area Emergency, or General Emergency. Plants may use NRC’s regulatory guidance as they develop their EAL scheme.
The NRC has developed and/or endorsed numerous guidance documents to help licensees develop a site-specific emergency action level scheme. The NRC encourages licensees, or future license applicants, to use the most recent applicable guidance. This includes using the latest revision from the following documents:
- NEI 99-01, Rev. 4, Rev. 5, & Rev. 6, "Methodology for Development of Emergency Action Levels, Nuclear Energy Institute document
- NEI 07-01, "Methodology for Development of Emergency Action Levels, Advanced Passive Light Water Reactors", Nuclear Energy Institute document.
- NUMARC/NESP-007, Rev. 2, “Methodology for Development of Emergency Action Levels"
Page Last Reviewed/Updated Thursday, February 10, 2022