Pub. L. 100-647, tit. VI, subtit. B, sec. 6632
TREATMENT OF INDIRECT HOLDINGS THROUGH TRUSTS UNDER SECTION 448 OF THE 1986 CODE.
SEC. 6632. TREATMENT OF INDIRECT HOLDINGS THROUGH TRUSTS UNDER SECTION 448 OF THE 1986 CODE. (a) General Rule.—Paragraph (2) of section 448(d) of the 1986 Code (defining qualified personal service corporation) is amended by adding at the end thereof the following new sentence: “To the extent provided in regulations which shall be prescribed by the Secretary, indirect holdings through a trust shall be taken into account under subparagraph (B).” (b) Effective Date.—The amendment made by subsection (a) shall apply to taxable years beginning after December 31, 1986.