(a) Except as specified in (b) of this section, in the administration of a trust that is a private foundation, as defined in 26 U.S.C. 509 (Internal Revenue Code of 1954), charitable trust, as described in 26 U.S.C. 4947(a)(1) (Internal Revenue Code of 1954), or split-interest trust, as described in 26 U.S.C. 4947(a)(2) (Internal Revenue Code of 1954), the trust instrument of the trust is considered to contain provisions prohibiting the trustee from

(1) engaging in an act of self-dealing, as defined in 26 U.S.C. 4941(d) (Internal Revenue Code of 1954), that would give rise to liability for the tax imposed by 26 U.S.C. 4941(a) (Internal Revenue Code of 1954);

(2) retaining excess business holdings, as defined in 26 U.S.C. 4943(c) (Internal Revenue Code of 1954), that would give rise to liability for the tax imposed by 26 U.S.C. 4943(a) (Internal Revenue Code of 1954);

(3) making an investment that would jeopardize the carrying out of any of the exempt purposes of the trust, within the meaning of 26 U.S.C. 4944 (Internal Revenue Code of 1954), so as to give rise to liability for the tax imposed by 26 U.S.C. 4944(a) (Internal Revenue Code of 1954); and

(4) making taxable expenditures, as defined in 26 U.S.C. 4945(d) (Internal Revenue Code of 1954), that would give rise to liability for the tax imposed by 26 U.S.C. 4945(a) (Internal Revenue Code of 1954).

(b) The provisions of (a) of this section do not apply either to those split-interest trusts or to amounts of them that are not subject to the prohibitions applicable to private foundations by reason of the provisions of 26 U.S.C. 4947 (Internal Revenue Code of 1954).

(c) The trust instrument of each trust specified in (a) of this section, except a split-interest trust, is considered to contain a provision requiring the trustee to distribute, for the purposes specified in the trust instrument, for each taxable year of the trust, amounts at least sufficient to avoid liability for the tax imposed by 26 U.S.C. 4942(a) (Internal Revenue Code of 1954).

(d) Nothing in this section limits the power of a person who creates a trust after August 23, 1971, or the power of a person who has retained or has been granted the right to amend a trust created before August 23, 1971, to include a specific provision in the trust instrument or an amendment to it that provides that some or all of the provisions of (a) and (b) of this section do not apply to the trust.

(e) In this section, references to provisions of the Internal Revenue Code of 1954 include future amendments to those provisions.