Civil marriage equality in effect at the state level since 2014. (Same-sex couples may legally marry.)
2 cases in Federal District Court (3rd), 3 cases in state trial court.
PA has prohibited same-sex marriage by statute (state law) since 1996.
Attempts to amend the state constitution to ban marriage equality were made in 2006, 2008, 2010, 2011, and 2013. All failed.
Several attempts to legalize same-sex civil marriages failed in the state legislature while the Republicans had the majority in either House.
Marriage equality in PA finally became legal on 20 May 2014, when U.S. Federal District Judge John E. Jones III ruled that the Commonwealth's 1996 statutory ban on same-sex marriage was unconstitutional.