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(a) Undefinitized contract actions may be issued only on an exception basis, and centers must ensure that NASA liabilities and commitments are minimized. When an undefinitized contract action is justified and program requirements can be severed into smaller, discreet efforts, the work authorized by the undefinitized contract action must be limited to the minimum severable effort required to satisfy the urgent program requirements. The remaining requirements may not be initially included in the undefinitized contract action and must be acquired through a separate fully priced and definitized contract action.
(b) The contract file for each UCA shall be documented to justify issuance and shall include a Government estimate for the changed requirements.