Providing expertise and tools to predict and map the spread of hazardous material accidentally or intentionally released into the atmosphere

NARAC is a national support and resource center for emergency planning, real-time assessment, emergency response, and detailed studies of atmospheric releases of nuclear, radiological, chemical, biological, and hazardous natural materials. Located at the Department of Energy/National Nuclear Security Administration's (DOE/NNSA) Lawrence Livermore National Laboratory (LLNL), NARAC provides timely and accurate plume predictions to aid emergency preparedness and response efforts in protecting the public and the environment. Since 1979, NARAC has provided support for numerous accidents or potential incidents, and celebrated its 40th anniversary in 2019.