Governor Quinn signed the legislation on January 31, 2011, and it went into effect on June 1, 2011.
Following the Governor's signature of the 2013 law that legalized same-sex marriage in Illinois, civil unions remain in effect and operative for both opposite-sex and same-sex couples.
An opinion by the state Attorney General on March 4 announced that the ruling could apply to any county clerk who chose to issue marriage licenses to same-sex couples. On November 30, 2010, the House passed the bill by a vote of 61–52.
So tonight, Michelle and I are overjoyed for all the committed couples in Illinois whose love will now be as legal as ours – and for their friends and family who have long wanted nothing more than to see their loved ones treated fairly and equally under the law." Bishop Larry D.
On February 22, 2007, Representative Greg Harris introduced the Religious Freedom and Marriage Fairness Bill in the Illinois House of Representatives, which would have provided for same-sex marriage in the state.
On January 2, 2013, at the end of the 97th General Assembly, Steans re-introduced her bill as an amendment to an unrelated Senate bill.
A special session was held on pension reform, the same-sex marriage bill, however, was not included.
Instead, LGBT organizations and the bill's sponsors focused instead on increasing support for the legislation, with the goal of holding a vote in the October and November veto session of the House and Senate.