17 C.F.R. § 246.20
(a) Definitions. For purposes of this section, the following definition shall apply:
U.S. person means:
(i) Any of the following:
(H) Any partnership, corporation, limited liability company, or other organization or entity if:
(1) Organized or incorporated under the laws of any foreign jurisdiction; and
(2) Formed by a U.S. person (as defined under any other clause of this definition) principally for the purpose of investing in securities not registered under the Act; and
(ii) “U.S. person(s)” does not include:
(B) Any estate of which any professional fiduciary acting as executor or administrator is a U.S. person (as defined in paragraph (i) of this section) if:
(1) An executor or administrator of the estate who is not a U.S. person (as defined in paragraph (i) of this section) has sole or shared investment discretion with respect to the assets of the estate; and
(2) The estate is governed by foreign law;
(E) Any agency or branch of a U.S. person (as defined in paragraph (i) of this section) located outside the United States if:
(1) The agency or branch operates for valid business reasons; and
(2) The agency or branch is engaged in the business of insurance or banking and is subject to substantive insurance or banking regulation, respectively, in the jurisdiction where located;
(b) In general. This part shall not apply to a securitization transaction if all the following conditions are met:
(3) Neither the sponsor of the securitization transaction nor the issuing entity is:
(4) If the sponsor or issuing entity is chartered, incorporated, or organized under the laws of a jurisdiction other than the United States or any State, no more than 25 percent (as determined based on unpaid principal balance) of the assets that collateralize the ABS interests sold in the securitization transaction were acquired by the sponsor or issuing entity, directly or indirectly, from: