(a) In general. For the definition of the terms spouse, husband and wife, husband, wife, and marriage, see § 301.7701-18 of this chapter.
(b) Applicability date. The rules of this section apply to taxable years ending on or after September 2, 2016.
[T.D. 9785, 81 FR 60616, Sept. 2, 2016]
source: Sections 1.1401-1 through 1.1403-1 contained in T.D. 6691, 28 FR 12796, Dec. 3, 1963, unless otherwise noted.
cite as: 26 CFR 1.7701-1