(a) The contracting officer or auditor shall promptly distribute executed copies of the indirect cost rate agreement to the contractor and to each affected contracting agency and shall provide copies of the agreement for the contract files, in accordance with the guidance for contract modifications in subpart 4.2, Contract Distribution.

(b) Copies of the negotiation memorandum prepared under contracting officer determination or audit report prepared under auditor determination shall be furnished, as appropriate, to the contracting offices and Government audit offices.