Abstract: The Interstate Chemical Terrorism Workgroup (ICTW) was formed in 2002 and currently includes members from nearly all states and Washington, DC, as well as representation from a number of non-governmental organizations. In addition to offering monthly conference call/presentations, the ICTW partnered with the Centers for Disease Control and Prevention (CDC) in 2003 to host a workshop to address basic elements of risk communication needs in a chemical event. The primary goal of the workshop was to develop a list of core competencies and benchmarks as well as a series of fact sheet templates destined for the general public and press, health care providers, public health department and/or officials, and first response and emergency workers (Lee et al., 2006). Key findings of the 2003 workshop, along with other work being done by CDC, academia and the states, underscore the importance of public health agencies in providing risk communication services during (and particularly after) chemical emergencies, whether intentional or not. Tools developed by the ICTW have been used and/or consulted by many groups involved in public health preparedness. This case study will examine the efforts of Michigan to implement these tools to reduce information overload in an emergency.