In an effort to better serve the growing base of CME Globex® users, the CME will be implementing a new program to capture additional user information for members, member employees, automated transactions systems, and those required to register in preferential fee programs.   This additional information is necessary to uniquely identify individual users.  Additionally, many such users have a preference to trade under multiple “Tag 50” operator ids.   It is our objective to continue allowing users to trade according to their preferences in this regard but it is equally important that we have the capability to uniquely identify such users.