The 28th Alberta Legislative Assembly was in session from May 23, 2012, to April 7, 2015, with the membership of the assembly determined by the results of the 2012 Alberta general election held on April 23, 2012. The Legislature officially resumed on May 23, 2012, and continued until the third session was prorogued and dissolved on April 7, 2015, prior to the 2015 Alberta general election on May 5, 2015.