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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
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Title 49
Chapter VI
Part 663 - PART 663—PRE-AWARD AND POST-DELIVERY AUDITS OF ROLLING STOCK PURCHASES
Subpart A [§ 663.1 - § 663.15] - Subpart A—General
Subpart B [§ 663.21 - § 663.27] - Subpart B—Pre-Award Audits
Subpart C [§ 663.31 - § 663.39] - Subpart C—Post-Delivery Audits
Subpart D [§ 663.41 - § 663.43] - Subpart D—Certification of Compliance With or Inapplicability of Federal Motor Vehicle Safety Standards
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