This part sets forth terms, conditions, and limitations applicable to foreign air carrier permits issued under section 41302 of Title 49 of the United States Code (Transportation) authorizing scheduled foreign air transportation. Unless such permits or the orders issuing such permits otherwise provide, the exercises of the privileges to engage in scheduled foreign air transportation granted by any such permit shall be subject to the terms, conditions, and limitations as are set forth in this part, and as may from time to time be prescribed by the Department.