Transportation Technology Center, Inc. (TTCI) developed initial concepts for a Positive Train Control (PTC) Interoperable Lifecycle Management (ILM) system to support established and evolving industry processes to manage, coordinate, and document changes to PTC throughout its lifecycle. As part of the project, TTCI engaged industry groups established to support PTC ILM activities to support the established and evolving processes, gaining insights into the needs for the PTC ILM system. In addition to the initial concepts, TTCI developed initial high-level requirements for the interoperable change and configuration management aspects of the system and evaluated existing commercially available tools to determine applicability to the PTC ILM system.