Individual - civil union with relative - prohibited
C.R.S. § 14-15-105
in effect14-15-105. Individual - civil union with relative - prohibited. (1) An individual shall not enter into a civil union with an ancestor or a descendant or with a brother or a sister, whether the relationship is by the half or the whole blood.
(2) An individual shall not enter into a civil union with an uncle or aunt or with a niece or nephew, whether the relationship is by the half or the whole blood.
(3) A civil union between persons prohibited from entering into a civil union by subsection (1) or (2) of this section is void.
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://leg.colorado.gov/sites/default/files/images/olls/crs2024-title-14.docx#14-15-105Fetched: 10/6/2026
