The toolkit provides tools for implementing Incident Command System for epidemiologic efforts between state and local agencies. Forms, guidance, and training address roles and responsibilities of epidemiologic personnel during an investigation and coordination of epidemiologic and surveillance activities between jurisdictions and emergency management agencies. The IDER toolkit is based on resources used by the San Francisco Department of Public Health since 2006. It has been refined numerous times based on its use during exercises and real-life emergency events, including San Franciscos response to the 2009 H1N1 pandemic. This tool was identified through NACCHOs Resource Portfolio Project on the CDC Public Health Preparedness Capabilities. Through this project, NACCHO worked with the Center for Infectious Disease Research and Policy (CIDRAP) to identify, research, and validate tools, practices, and products that can assist LHDs to address challenges in meeting select PHEP capabilities.