The circular regarding the election refers to the Elections Act and to the various regulations. It's only a handout for the broadcasters reminding them what the rules are and where they can find the information. It's very useful for people working in the newsroom and public affairs, as they do change from time to time and new people come in. That's why the commission puts out these types of circulars every time there is a federal or provincial election.
On February 22nd, 2007. See this statement in context.