The Merit Systems Protection Board is an independent, quasi-judicial agency in the Executive branch that serves as the guardian of Federal merit systems. The Board was established by Reorganization Plan No. 2 of 1978, which was codified by the Civil Service Reform Act of 1978 (CSRA), Public Law No. 95-454. The CSRA, which became effective January 11, 1979, replaced the Civil Service Commission with three new independent agencies: Office of Personnel Management (OPM), which manages the Federal work force; Federal Labor Relations Authority (FLRA), which oversees Federal labor-management relations; and, the Board.