Section applicable to taxable years ending after June 7, 2001, and to contributions made to electing Settlement Trusts for such year or any subsequent year, see section 671(d) of Pub. L. 107–16, set out as a note under section 646 of this title.

Section inapplicable to taxable, plan, or limitation years beginning after Dec. 31, 2010, and the Internal Revenue Code of 1986 to be applied and administered to such years as if it had never been enacted, see section 901 of Pub. L. 107–16, set out as an Effective and Termination Dates of 2001 Amendment note under section 1 of this title.