(a)(1) When reviewing the facts pertinent to a claim, the contracting officer shall determine if the claimant established:

(A) the existence of a legal basis for entitlement,

(B) facts meeting the elements of proof required to support the basis of entitlement, and

(C) adequate factual support for the amounts claimed.

(b) Copies of the contracting officer's decision shall receive the same distribution as the related contract and also shall be furnished to any assignee, guarantor, or surety of the contractor.