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                            1817.7000   Definitions.
        
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NFSPart Number: 1817
        
                  

                                
                  
        NASA Federal Acquisition Regulation Supplement
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1817.7000 Definitions.1817.7000 Definitions.       (a) *Down-selection.* In a phased acquisition, the process of selecting contractors for later phases from among the preceding phase contractors.          (b) *Phased Acquisition.* An incremental acquisition implementation comprised of several distinct phases where the realization of program/project objectives requires a planned, sequential acquisition of each phase. The phases may be acquired separately, in combination, or through a down-selection strategy.          (c) *Progressive Competition.* A type of down-selection strategy for a phased acquisition. In this method, a single solicitation is issued for all phases of the program. The initial phase contracts are awarded, and the contractors for subsequent phases are expected to be chosen through a down-selection from among the preceding phase contractors. In each phase, progressively fewer contracts are awarded until a single contractor is chosen for the final phase. Normally, all down-selections are accomplished without issuance of a new, formal solicitation.    **Parent topic:**  Subpart 1817.70—Phased Acquisition
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