View all text of Part 26 [§ 26.2600-1 - § 26.7701-2]
§ 26.7701-2 - Definitions; spouse, husband and wife, husband, wife, marriage.
(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.