A. NASA Inspectors. Quoting from the CCP IDC Pre-Soliciation Conference Presentation referenced by Joek abovehttp://commercialcrew.nasa.gov/document_file_get.cfm?docid=343Slide 39" H.14 Completion Milestone Payments and Interim Performance-based PaymentsCompletion Milestone eventsDetermination of milestone completionCompletion payments are not recoverableInterim financing payments in accordance with FAR 52.232-32, Performance Based Payments, may be proposedInterim payments are recoverable until successful accomplishment of Completion Milestone eventAttachment J-4, Milestone Acceptance Criteria and Payment Schedule"Someone from the government will check that the milestone have actually be completed. Possible using the people mentioned in slide 38.
Staff hiring and facility repairs can be hidden on long contract but unfortunately can have a major effect on the end date of a short contract. They allow a customer to see that the contractor is actually doing something on a contract.