The creation of emergency health care standards for catastrophic events

The creation of health care standards by the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) in a defined area with known events follows a predictable process. A problem area (e.g., hand hygiene) is identified from multiple sources. The JCAHO then calls together experts from around the country, and through debate and the comparison of positions of various people within the health care arena, a new standard informed by these views can be developed. Once developed, it is vetted and becomes established as a Joint Commission standard. But what happens when an event has never happened, cannot be reliably predicted, and, one hopes, will never come to pass? How can one create any meaningful standards? This is the situation when considering a number of scenarios related to disasters and mass casualty events.