Many TMCs are regional facilities and are intended to serve particular areas/regions. However, a TMC can also function as a statewide or multi-state facility, responsible for providing traffic management, incident management and dissemination of information to the traveling public and the media at a regional, statewide or multi-state corridor or region level. A viable way to ensure the key transportation management functions and services are maintained 24/7 throughout a regional, a state, or a multi-state region/corridor is to establish a regional/statewide/multi-state TMC where the operations of other TMCs within the regional/state/multi-state could be shared with or transferred to during off hours. Several policy, institutional and technical issues need to be considered for a regional/statewide/multi-state TMC implementation. The overall objective of this project will be to develop a document that provides technical guidance and recommended practices on the need for, how to develop, and use a concept of operations and requirements throughout the life cycle of a regional, statewide, or multi-state TMC.