38 U.S.C. § 7291 : US Code - Section 7291: Date when Court decision becomes final

      (a) A decision of the United States Court of Appeals for Veterans
    Claims shall become final upon the expiration of the time allowed
    for filing, under section 7292 of this title, a notice of appeal
    from such decision, if no such notice is duly filed within such
    time. If such a notice is filed within such time, such a decision
    shall become final - 
        (1) upon the expiration of the time allowed for filing a
      petition for certiorari with the Supreme Court of the United
      States, if the decision of the Court of Appeals for Veterans
      Claims is affirmed or the appeal is dismissed by the United
      States Court of Appeals for the Federal Circuit and no petition
      for certiorari is duly filed;
        (2) upon the denial of a petition for certiorari, if the
      decision of the Court of Appeals for Veterans Claims is affirmed
      or the appeal is dismissed by the United States Court of Appeals
      for the Federal Circuit; or
        (3) upon the expiration of 30 days from the date of issuance of
      the mandate of the Supreme Court, if that Court directs that the
      decision of the Court of Appeals for Veterans Claims be affirmed
      or the appeal dismissed.

      (b)(1) If the Supreme Court directs that the decision of the
    Court of Appeals for Veterans Claims be modified or reversed, the
    decision of the Court of Appeals for Veterans Claims rendered in
    accordance with the mandate of the Supreme Court shall become final
    upon the expiration of 30 days from the time it was rendered,
    unless within such 30 days either the Secretary or the petitioner
    has instituted proceedings to have such decision corrected to
    accord with the mandate, in which event the decision of the Court
    of Appeals for Veterans Claims shall become final when so
    corrected.
      (2) If the decision of the Court of Appeals for Veterans Claims
    is modified or reversed by the United States Court of Appeals for
    the Federal Circuit and if - 
        (A) the time allowed for filing a petition for certiorari has
      expired and no such petition has been duly filed, or
        (B) the petition for certiorari has been denied, or
        (C) the decision of the United States Court of Appeals for the
      Federal Circuit has been affirmed by the Supreme Court,

    then the decision of the Court of Appeals for Veterans Claims
    rendered in accordance with the mandate of the United States Court
    of Appeals for the Federal Circuit shall become final upon the
    expiration of 30 days from the time such decision of the Court of
    Appeals for Veterans Claims was rendered, unless within such 30
    days either the Secretary or the petitioner has instituted
    proceedings to have such decision corrected so that it will accord
    with the mandate, in which event the decision of the Court of
    Appeals for Veterans Claims shall become final when so corrected.
      (c) If the Supreme Court orders a rehearing, or if the case is
    remanded by the United States Court of Appeals for the Federal
    Circuit to the Court of Appeals for Veterans Claims for a
    rehearing, and if - 
        (1) the time allowed for filing a petition for certiorari has
      expired and no such petition has been duly filed, or
        (2) the petition for certiorari has been denied, or
        (3) the decision of the United States Court of Appeals for the
      Federal Circuit has been affirmed by the Supreme Court,

    then the decision of the Court of Appeals for Veterans Claims
    rendered upon such rehearing shall become final in the same manner
    as though no prior decision of the Court of Appeals for Veterans
    Claims had been rendered.
      (d) As used in this section, the term "mandate", in case a
    mandate has been recalled before the expiration of 30 days from the
    date of issuance thereof, means the final mandate.