This is one of four interrelated action agenda papers resulting from the National Summit on Public Health Legal Preparedness convened in June 2007 by the Centers for Disease Control and Prevention and nineteen multi-disciplinary partner organizations. Each of the action agenda papers deals with one of the four core elements of public health legal preparedness: laws and legal authorities; competency in using those laws; coordination of law-based public health actions; and information. Options presented in this paper are for consideration by (...) policymakers and practitioners — in all jurisdictions and all relevant sectors and disciplines — with responsibilities for all-hazards emergency preparedness.This paper focuses on the fourth core element: information that can be used in shaping and applying law as a public health tool, specifically in the context of public health emergencies. (shrink)