There are three main programs that will be part of the express entry: the Canadian experience class, the federal skilled worker program, and the federal skilled trades program. As well, a portion of the provincial nominee program will also come through express entry. For the most part, provincial nominee programs will work as they have in the past, but there will be a top-up to provincial nominee programs. For that top-up portion, provinces will be required to come through the pool, to come through that express entry system.
On June 11th, 2014. See this statement in context.