Under the Computer Matching and Privacy Protection Act of 1988, which amended the 1974 Privacy Act, federal agencies must establish an internal Data Integrity Board (DIB) to oversee and approve their use of computer matching programs. Before a federal department or agency can match its data with data held by another federal or state government department or agency, either as the recipient or the source of the data, it must enter into a written Computer Matching Agreement (CMA) with the other party, which must be approved by the department's or agency's DIB.