Question 6 (colloquially called the Maryland same-sex marriage referendum) is a referendum that appeared on the general election ballot for the U.S. state of Maryland to allow voters to approve or reject the Civil Marriage Protection Act—a bill legalizing same-sex marriage passed by the General Assembly in 2012. The referendum was approved by 52.4% of voters on November 6, 2012 and thereafter went into effect on January 1, 2013.