What are the requirements for a national smoke health warning system? Smoke from wildland and agricultural fires is a recognized contributor to air quality degradation, yet ambient concentrations of smoke are difficult to accurately forecast and the potential risks to human, animal, and environmental health are not well understood. Epidemiological, medical, and public health expertise, along with effective communication strategies, are necessary components of an effective national system. Within the U.S., there are multiple agencies involved in providing information regarding smoke emissions, transport, and exposure estimates, as well as efforts towards developing warning systems. This Town Hall invites community discussion around this issue, and will include comments from representatives from various national agencies and the private sector.