Colo. Rev. Stat. § 14-2-110

Colorado Revised Statutes 2025 — Title 14: Domestic Matters — Article 2: Marriage and Rights of Married Persons § 14-2-110 Prohibited marriages 14‑2‑110. Prohibited marriages. (1) The following marriages are prohibited: (a) A marriage entered into prior to the dissolution of an earlier marriage of one of the parties, except a currently valid marriage between the parties; (a.5) A marriage entered into prior to the dissolution of an earlier civil union of one of the parties, except a currently valid civil union between the same two parties; (b) A marriage between an ancestor and a descendant or between a brother and a sister, whether the relationship is by the half or the whole blood; (c) A marriage between an uncle and a niece or between an aunt and a nephew, whether the relationship is by the half or the whole blood, except as to marriages permitted by the established customs of aboriginal cultures. (2) Repealed. Source: L. 73: R&RE, p. 1019, 1. C.R.S. 1963: 90‑1‑10. L. 78: (1)(b) amended, p. 262, 47, effective May 23. L. 93: (1)(a) amended, p. 438, 4, effective July 1. L. 2016: (1)(a.5) added, (SB 16‑150), ch. 263, p. 1080, 3, effective June 8. L. 2018: (2) repealed, (SB 18‑095), ch. 96, p. 753, 5, effective August 8. Cross references: (1) For criminal penalties for the offense of bigamy, see 18‑6‑201; for criminal penalties for the offense of incest, see 18‑6‑301. (2) For the legislative declaration in SB 16‑150, see section 1 of chapter 263, Session Laws of Colorado 2016. For the legislative declaration in SB 18‑095, see section 1 of chapter 96, Session Laws of Colorado 2018. Source: Colorado General Assembly, Office of Legislative Legal Services. Colorado Revised Statutes 2025, current through the 75th General Assembly, First Extraordinary Session (August 2025). https://leg.colorado.gov/colorado-revised-statutes