Regulations last checked for updates: Apr 03, 2026

Title 48 - Federal Acquisition Regulations System last revised: Mar 13, 2026
All TitlesTitle 48Chapter 6Part 643 - PART 643—CONTRACT MODIFICATIONS
authority: 40 U.S.C. 486(c); 22 U.S.C. 2658.
source: 53 FR 26176, July 11, 1988, unless otherwise noted.
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