1998—
Pub. L. 105–206 renumbered section
646 of this title as this section.
Section 1305(d) of
Pub. L. 105–34 provided that: “The amendments made by this section [enacting this section and amending section
2652 of this title] shall apply with respect to estates of decedents dying after the date of the enactment of this Act [Aug. 5, 1997].”