Section, act Aug. 14, 1935, ch. 531, title II, 224, as added Aug. 1, 1956, ch. 836, title I, 103(a), 70 Stat. 816; amended July 17, 1957, Pub. L. 85–109, § 2(a), 71 Stat. 308, related to reduction of benefits based on disability.