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Title 48: Federal Acquisition Regulations System
CHAPTER 18: NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
SUBCHAPTER A: GENERAL
PART 1804: ADMINISTRATIVE MATTERS
Subpart 1804.1: Contract Execution
1804.170 - Contract effective date.
(a) Contract effective date means the date agreed upon by the parties for beginning the period of performance under the contract. In no case shall the effective date precede the date on which the contracting officer or designated higher approval authority signs the document.
(b) Costs incurred before the contract effective date are unallowable unless they qualify as precontract costs (see FAR 31.205-32) and the clause prescribed at 1831.205-70 is used.
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