§ 1814.
All improvements, alterations, additions, and repairs of the Capitol Building shall be made by the direction and under the supervision of the Architect of the Capitol.
(R.S. § 1816; [Feb. 14, 1902, ch. 17], [32 Stat. 20]; [Mar. 3, 1921, ch. 124], [41 Stat. 1291]; [Oct. 31, 1951, ch. 654, § 3(15)], [65 Stat. 708].)