Issue Briefs Subject(s): Children & Domestic Matters Courts & Judicial Published: June 19, 2013 Agency: Legislative Council Staff In the 2013 legislative session, the General Assembly enacted Senate Bill 13-011, the Colorado Civil Union Act. This issue brief summarizes the provisions of the act and discusses other states' laws concerning same-sex marriage and civil unions. A brief explanation of two same-sex marriage cases pending before the U.S. Supreme Court is also included. Download Document