A CBRN Civilian is a professional who works in Chemical, Biological, Radiological, and Nuclear (CBRN) defense, typically within government agencies or military support roles. They focus on preparedness, response, mitigation, and recovery from CBRN threats, such as hazardous material incidents or potential attacks. Their duties may include training personnel, conducting risk assessments, maintaining protective equipment, and developing emergency response plans. These roles are essential for national security and public safety, often requiring expertise in science, engineering, or emergency management.