March 13, 2025
The Michigan State Police, Emergency Management and Homeland Security Division (MSP/EMHSD) is playing a lead role in the planning, hosting and execution of a historic full-scale radiological exercise. More than 70 local, state, provincial and federal agencies from the United States and Canada will participate in this major radiological incident exercise at various locations in Lansing, southeast Michigan, Indiana, Ohio and Ontario from March 14 - 21.
The Cobalt Magnet 2025 exercise is led by the U.S. Department of Energy’s National Nuclear Security Administration (NNSA), in partnership with the MSP/EMHSD. It will bring numerous agencies together to ensure preparedness against radiological threats.
"Michigan is home to two active nuclear power plants, with a third slated to return online within the next year," said Col. James F. Grady II, director of the Michigan State Police and state director of emergency management and homeland security. "Given our location near Canada and other Great Lakes states, Michigan is uniquely positioned to play a critical role in this vital exercise, where the lessons learned will improve safety and response actions impacting the nation and beyond."
Cobalt Magnet 2025 represents the culmination of 18 months of planning by local, state, provincial and federal responders. The exercise, with more than 3,000 participants, will simulate a nuclear power plant accident. It will enable response personnel to practice scanning for radiological materials, protecting public health and safety, providing emergency relief to affected populations and restoring essential services.
“During the exercise, members of the public may see field teams in protective clothing using radiological monitoring and detection equipment, low-flying aircraft conducting data-gathering overflights and groups of first responders and others staged at various locations,” explained Capt. Kevin Sweeney, deputy state director of Emergency Management and commander of the MSP/EMHSD. “The MSP/EMHSD will host a large portion of the Cobalt Magnet 25 exercise at the State Emergency Operations Center at MSP Headquarters in Dimondale. Multiple State of Michigan agencies will join the MSP in this full-scale exercise.”
Cobalt Magnet 2025 is part of a regular program of training, exercises and planning that help first responders prepare in case of a public health and safety emergency.
For more information on how to prepare before, during and after an emergency or disaster, visit www.michigan.gov/miready or follow MSP/EMHSD on X at @MichEMHS.
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