Milestones: Identify and define key milestones, including required completion dates and completion criteria. Key events such as fab completion (a manufacturing plant which fabricates items), assembly completion, test completion, document package sign - off, or customer acceptance may be included. List all contractually fixed events and any other major schedule milestones that are critical to completion of the work. Often these milestones are dates related to deliverables/end products from the previous section.