This synthesis report will be of interest to state transportation departments and regional and local agencies, as well as to the consultants that work with them. It identifies how configuration management (CM) is currently being developed and used by transportation management systems. It is intended as a resource document for professionals just beginning to apply CM. This report can be used as a reference tool by agency managers and administrators, as well as other technical personnel, in both the public and private sectors, to locate more in-depth material to support CM programs. The document addresses the fundamental concepts and principles of CM, the need for CM within transportation management systems, and available CM resources (including books, standards, websites, and software tools). Also, it contains information about the status of CM within transportation departments and detailed case studies of the use of CM both outside of and within the transportation field. A glossary is included. An appendix contains an example CM tool.  The report for this topic can be purchased at https://www.trb.org/news/blurb_detail.asp?id=3268