Party to a structured arrangement.
(ii) Party to a structured arrangement. A party to a structured arrangement means a tax resident, a taxable branch, or an entity that participates in the structured arrangement. For purposes of this paragraph (a)(20)(ii), in the case of an entity, the entity's participation in a structured arrangement is imputed to its investors. However, a tax resident, a taxable branch or an entity (the relevant party) is considered to participate in the structured arrangement only if -