Since June 28, 2004, there have been 308 federal electoral districts in Canada. In accordance with the Fair Representation Act (introduced as Bill C-20), which received Royal Assent and came into force on December 16, 2011, the number of seats contested in the expected 2015 election will rise to 338.[1] Ontario uses the same boundaries for the electoral districts for its Legislative Assembly in Southern Ontario, while seats in Northern Ontario correspond to the federal districts that were in place before the 2004 adjustment. The other provinces use different electoral districts for their legislatures. Ontario had separate provincial electoral districts prior to 1999.