Okla. Stat. tit. 60, § 60-175.716: Certain distributions prohibited

CERTAIN DISTRIBUTIONS PROHIBITED

A. Except as provided by subsection B of this section, an

authorized trustee shall not exercise a power to distribute

principal of a trust otherwise provided by Section 3 or 4 of this

act if the distribution is expressly prohibited by the terms of the

governing instrument of the trust.

B. A general prohibition of the amendment or revocation of a

trust or a provision that constitutes a spendthrift clause shall not

preclude the exercise of a power to distribute principal of a trust

under Section 3 or 4 of this act.