The Social Security Act, referred to in subsec. (b), is act Aug. 14, 1935, ch. 531, 49 Stat. 620. Titles II and XVI of the Social Security Act are classified generally to subchapters II (§ 401 et seq.) and XVI (§ 1381 et seq.), respectively, of chapter 7 of this title. For complete classification of this Act to the Code, see section 1305 of this title and Tables.