Transition rules.
(ii) Transition rules. Taxpayers may apply paragraph (h)(1)(iv)(B) of this section on and after December 24, 2002, and before July 17, 2003, to treat a trust as a testamentary trust, but not during any period for which a QSST or ESBT election was in effect for the trust. In addition, the Internal Revenue Service will not challenge the treatment of a trust described in paragraph (h)(1)(iv)(B) of this section as a permitted shareholder of an S corporation for periods after August 5, 1997, and before the earlier of July 17, 2003, or the effective date of any QSST or ESBT election for that trust.