Pub. L. 107-16, tit. V, subtit. I, sec. 581
WAIVER OF STATUTE OF LIMITATION FOR TAXES ON CERTAIN FARM VALUATIONS.
SEC. 581. WAIVER OF STATUTE OF LIMITATION FOR TAXES ON CERTAIN FARM VALUATIONS. If on the date of the enactment of this Act (or at any time within 1 year after the date of the enactment) a refund or credit of any overpayment of tax resulting from the application of section 115 STAT. 942032A(c)(7)(E) of the Internal Revenue Code of 1986 is barred by any law or rule of law, the refund or credit of such overpayment shall, nevertheless, be made or allowed if claim therefor is filed before the date 1 year after the date of the enactment of this Act.