The NAS Resource Exchange System (NRES) has application in commercial air traffic management (ATM) within the United States and abroad. In the United States ATM market, the FAA will require the tools and procedures output by Phases II and III of this SBIR to act as a central processor and tracker of ATM-induced delays. At the same time, US air carriers will require tools with which to monitor and manipulate their delay management accounts. Estimates of ATM costs due to delays range from hundreds of millions of dollars to billions of dollars per year. The opportunity to save even a fraction of these costs creates a significant amount of motivation for airline participation in a delay management system. It is reasonable to assume that the number of carriers willing to participate in this system will be comparable to the number of carriers now signed up as active members of the collaborative decision making (CDM) program, which is 27. Air-traffic delays in foreign countries are generally not as pronounced as in the U.S., but this has been achieved by sacrificing flexibility in the system a major limitation on the ability to handle growth in demand for air transportation. For this reason, foreign ATM systems represent another market for the delay management system.