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INTERNAL REVENUE CODE OF 1954
owner after the expiration of the period unless the power is reUnquished. (3) P O W E R EXERCISABLE ONLY BY WILL.—A power- exercisable
only by will, other than a power in the grantor to appoint by will the income of the trust where the income is accumulated for such disposition by the grantor or may be so accumulated in the discretion of the grantor or a nonadverse party, or both, without the approval or consent of any adverse party. (4) P O W E R TO ALLOCATE AMONG CHARITABLE BENEFICIARIES.—
A power to determine the beneficial enjoyment of the corpus or the income therefrom if the corpus or income is irrevocably payable for a purpose specified in section 170(c) (relating to definition of charitable contributions). (5) P O W E R TO DISTRIBUTE CORPUS.—A power to distribute corpus either— (A) to or for a beneficiary or beneficiaries or to or for a class of beneficiaries (whether or not income beneficiaries) provided that the power is limited by a reasonably definite standard which is set forth in the trust instrument; or (B) to or for any current income beneficiary, provided that the distribution of corpus must be chargeable against the proportionate share of corpus held in trust for the payment of income to the beneficiary as if the corpus constituted a separate trust. A power does not fall within the powers described in this paragraph if any person has a power to add to the beneficiary or beneficiaries or to a class of beneficiaries designated to receive the income or corpus, except where such action is to provide for after-born or after-adopted children. (6) P O W E R TO WITHHOLD INCOME TEMPORARILY.—A power to distribute or apply income to or for any current income beneficiary or to accumulate the income for him, provided that any accumulated income must ultimately be payable— (A) to the beneficiary from whom distribution or application is withheld, to his estate, or to his appointees (or persons named as alternate takers in default of appointment) provided that such beneficiary possesses a power of appointment which does not exclude from the class of possible appointees any person other than the beneficiary, his estate, his creditors, or the creditors of his estate, or (B) on termination of the trust, or in conjunction with a distribution of corpus which is augmented by such accumulated income, to the current income beneficiaries in shares which have been irrevocably specified in the trust instrument. Accumulated income shall be considered so payable although it is provided that if any beneficiary does not survive a date of distribution which could reasonably have been expected to occur within the beneficiary's lifetime, the share of the deceased beneficiary is to be paid to his appointees or to one or more designated alternate takers (other than the grantor or the grantor's estate) whose shares have been irrevocably specified. A power does not fall within the powers described in this paragraph if any person has a power to add to the beneficiary or beneficiaries or to a class of beneficiaries 1674(b)(2)
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