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  • replaced system sustainment plan

    A component approved plan applicable to Major Defense Acquisition Programs (MDAPs) that provides information on the sustainment of an existing system that the system under development is intended to replace. Submitted as an attachment to the Life Cycle Sustainment Plan (LCSP). The plan identifies the budgeting required to sustain the existing system until the system being developed under the MDAP is fielded and assumes the majority of the responsibility for the mission of the existing system.

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