Incorporate the cost principles and procedures in FAR Subpart 31, for use as the basis for pricing any adjustment under the reopener clause, and the clauses at FAR 52.215-23, Price Reduction for Defective Cost or Pricing Data - Modifications, FAR 52.215-25, Subcontractor Cost or Pricing Data - Modifications, (if applicable), and FAR 52.215-2, Audit - Negotiation.
