[562] 63 Stat. 714, 720, October 6, 1949, Sec. 408 (c).

[563] Id.

[564] 65 Stat. 373, October 10, 1951.

[565] 64 Stat. 10, February 25, 1950, Sec. 2.

[566] 64 Stat. 476, August 26, 1950, Sec. 3.

[567] 65 Stat. 644, October 26, 1951, Secs. 101, 103 (a).

[568] Id., Sec. 103 (b).

[569] 67 Stat. 363, August 5, 1953.

[570] Id., Sec. 4 (b).

[571] 66 Stat. 318, July 1, 1952, Sec. 2.