This regulation sets forth definitions, basic characteristics of Federal legislative jurisdiction and the policies, procedures, and responsibilities relating to the acquisition and retrocession of such jurisdiction over land areas within the United States that are under the control of the Department of the Army. This regulation will also be followed by the Office of the Chief of Engineers in processing acquisition and retrocession requests in connection with land under the control of the Department of Air Force, as its real estate agent, subject to any additional requirements and regulations of the Air Force.