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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 30, 2025
All Titles
Title 48
Chapter 5
Part 509 - PART 509—CONTRACTOR QUALIFICATIONS
Subpart 509.1 [509.105 - 509.106-2] - Subpart 509.1—Responsible Prospective Contractors
Subpart 509.2 - Subpart 509.2 [Reserved]
Subpart 509.3 [509.306 - 509.308-2] - Subpart 509.3—First Article Testing and Approval
Subpart 509.4 [509.401 - 509.407-3] - Subpart 509.4—Debarment, Suspension, and Ineligibility
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