Section 222.4 - Responsibilities(a) The Director, Washington Headquarters Services, shall process MDR requests for OSD, the Office of the Chairman of the Joint Chiefs of Staff and the Joint Staff, and DoD Components not listed in the Appendix A to this part.(b)Heads of the DoD Components. The Heads of the DoD Components listed in the Appendix A to this part shall: (1) Establish procedures for the processing of MDR requests and appeals for information originating within the Component.(2) Appoint an appellate authority to adjudicate MDR appeals for the Component.