§ 1239.
(b)
Related persons
For purposes of subsection (a), the term “related persons” means—
(1)
a person and all entities which are controlled entities with respect to such person,
(2)
a taxpayer and any trust in which such taxpayer (or his spouse) is a beneficiary, unless such beneficiary’s interest in the trust is a remote contingent interest (within the meaning of section 318(a)(3)(B)(i)), and
(3)
except in the case of a sale or exchange in satisfaction of a pecuniary bequest, an executor of an estate and a beneficiary of such estate.
(d)
Employer and related employee association
For purposes of subsection (a), the term “related person” also includes—
(1)
an employer and any person related to the employer (within the meaning of subsection (b)), and
(2)
a welfare benefit fund (within the meaning of section 419(e)) which is controlled directly or indirectly by persons referred to in paragraph (1).
([Aug. 16, 1954, ch. 736], [68A Stat. 332]; [Pub. L. 85–866, title I, § 56], Sept. 2, 1958, [72 Stat. 1645]; [Pub. L. 94–455, title XXI, § 2129(a)], Oct. 4, 1976, [90 Stat. 1922]; [Pub. L. 95–600, title VII, § 701(v)(1)], Nov. 6, 1978, [92 Stat. 2920]; [Pub. L. 96–471, § 5], Oct. 19, 1980, [94 Stat. 2255]; [Pub. L. 97–448, title III, § 301], Jan. 12, 1983, [96 Stat. 2397]; [Pub. L. 98–369, div. A, title I, § 175(a)], (b), title IV, § 421(b)(6)(A), title V, § 557(a), July 18, 1984, [98 Stat. 708], 794, 898; [Pub. L. 99–514, title VI, § 642(a)(1)(A)]–(C), Oct. 22, 1986, [100 Stat. 2283], 2284; [Pub. L. 105–34, title XIII, § 1308(b)], Aug. 5, 1997, [111 Stat. 1041].)