31 CFR §515.524

1. (a)Any bank or trust company incorporated under the laws of the United States, or of any State, territory, possession, or district of the United States, or any private bank subject to supervision and examination under the banking laws of any State of the United States, acting as trustee of a trust created by gift, donation, or bequest and administered in the United States, in which one or more persons who are designated nationals have an interest, beneficial or otherwise, or are co-trustees, is hereby authorized to engage in the following transactions:
   1. (1)Payments of distributive shares of principal or income to all persons legally entitled thereto.
   2. (2)Other transactions arising in the administration of such trust which might be engaged in if no Cuban national were a beneficiary or co-trustee of such trust.
2. (b)This section does not authorize a trustee to engage in any other transaction at the request, or upon the instructions, of any beneficiary or co-trustee of such trust or other person who is a Cuban national.
3. (c)The application of this section to trusts is limited to trusts established by gift, donation, or bequest from individuals or entities to benefit specific heirs, charitable causes, and similar beneficiaries. This section does not apply to trusts established for business or commercial purposes, such as sinking funds established by an issuer of securities in order to secure payment of interest or principal due on such securities.