760 ILCS 3/1334

(a) For purposes of Sections 1333 through 1336, and except as otherwise provided in subsection (b), a power to withdraw property from a trust is treated, during the time the power may be exercised, as a presently exercisable general power of appointment to the extent of the property subject to the power to withdraw. (b) A power to withdraw property from a trust ceases to be treated as a presently exercisable general power of appointment upon its lapse, release, or waiver.