§ 21.
(g)
Finality of orders generally
Any order issued under subsection (b) shall become final—
(1)
upon the expiration of the time allowed for filing a petition for review, if no such petition has been duly filed within such time; but the commission, board, or Secretary may thereafter modify or set aside its order to the extent provided in the last sentence of subsection (b); or
(2)
upon the expiration of the time allowed for filing a petition for certiorari, if the order of the commission, board, or Secretary has been affirmed, or the petition for review has been dismissed by the court of appeals, and no petition for certiorari has been duly filed; or
(3)
upon the denial of a petition for certiorari, if the order of the commission, board, or Secretary has been affirmed or the petition for review has been dismissed by the court of appeals; or
(4)
upon the expiration of thirty days from the date of issuance of the mandate of the Supreme Court, if such Court directs that the order of the commission, board, or Secretary be affirmed or the petition for review be dismissed.
([Oct. 15, 1914, ch. 323, § 11], [38 Stat. 734]; [June 19, 1934, ch. 652], title VII, § 702(d), formerly title VI, § 602(d), [48 Stat. 1102]; renumbered [Pub. L. 98–549, § 6(a)], Oct. 30, 1984, [98 Stat. 2804]; [Aug. 23, 1935, ch. 614, § 203(a)], [49 Stat. 704]; [June 23, 1938, ch. 601, § 1107(g)], [52 Stat. 1028]; [June 25, 1948, ch. 646, § 32(a)], [62 Stat. 991]; [May 24, 1949, ch. 139, § 127], [63 Stat. 107]; [Dec. 29, 1950, ch. 1184], [64 Stat. 1125]; [Pub. L. 85–726, title XIV, § 1401(b)], Aug. 23, 1958, [72 Stat. 806]; [Pub. L. 85–791, § 4], Aug. 28, 1958, [72 Stat. 943]; [Pub. L. 86–107, § 1], July 23, 1959, [73 Stat. 243]; [Pub. L. 98–443, § 9(m)], Oct. 4, 1984, [98 Stat. 1708]; [Pub. L. 98–620, title IV, § 402(10)(B)], Nov. 8, 1984, [98 Stat. 3358]; [Pub. L. 104–88, title III, § 318(2)], Dec. 29, 1995, [109 Stat. 949].)