On the crown copyright administration, the rights are made available to Canadians to reuse unless otherwise stated, but a lot of the government information right now contains third party information, or information that's not necessarily negotiated to make public, so there are still constraints. Data sets and databases are probably the ones that contain a lot of information that cannot be made readily available to the public at the present time.
On February 28th, 2011. See this statement in context.