26 C.F.R. § 1.402(c)-1
Section 402(c) has the effect of treating, for purposes of section 402, the distributions from a trust which at the time of the distribution is located outside the United States in the same manner as distributions from a trust which is located in the United States. If the trust would qualify for exemption from tax under section 501(a) except for the fact that it fails to comply with the provisions of paragraph (a)(3)(i) of § 1.401-1 , which restricts qualification to trusts created or organized in the United States and maintained here, section 402(a) and § 1.402(a)-1 are applicable to the distributions from such a trust. Thus, for example, a total distribution from such a trust is entitled to the long-term capital gains treatment of section 402(a)(2), except in the case of a nonresident alien individual (see section 871 and 1441 and the regulations thereunder). However, if the plan fails to meet any requirement of section 401 and the regulations thereunder in addition to paragraph (a)(3)(i) of § 1.401-1 , section 402(b) and § 1.402(b)-1 are applicable to the distributions from such a trust.
26 C.F.R. §1.402(c)-1