26 U.S. Code § 2663 - Regulations
1988—Par. (3). Pub. L. 100–647 added par. (3).
Amendment by Pub. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Pub. L. 99–514, to which such amendment relates, see section 1019(a) of Pub. L. 100–647, set out as a note under section 1 of this title.