Canada Elections Act
The Canada Election Act limits spending on election advertising by interest groups, which was upheld by the Supreme Court of Canada in 2004,
It also sets out various provisions regarding the publication or broadcast of election advertising and election results.
In 2003, the Act was extended to cover the nomination contests of registered parties. In 2007, it was amended to mandate fixed election dates. In 2010 that is 21 October, 2019.