Sec. 16.
That all authorization to purchase, build, requisition, lease, exchange, or otherwise acquire houses, buildings or land under the Act entitled "An Act to authorize and empower the United States Shipping Board Emergency Fleet Corporation to purchase, lease, requisition, or otherwise acquire, and to sell or otherwise dispose of improved or unimproved lands, houses, buildings, and for other purposes," approved March 1, 1918, is hereby terminated: Provided, however, That expenditures may be made under said Act for the repair of houses and buildings already constructed, and the completion of such houses or buildings as have heretofore been contracted for or are under construction, if considered advisable, and the board is authorized and directed to dispose of all such properties or the interest of the United States in all such properties at as early a date as practicable, consistent with good business and the best interests of the United States.