“(1) Excess distribution tax repeal.—Except as provided in paragraph (2), the repeal made by subsection (a) [repealing this section] shall apply to excess distributions received after December 31, 1996.
“(2) Excess retirement accumulation tax repeal.—The repeal made by subsection (a) with respect to section 4980A(d) of the Internal Revenue Code of 1986 and the amendments made by subsection (b) [amending sections
691,
2013,
2053, and
6018 of this title] shall apply to estates of decedents dying after December 31, 1996.”