Yes. As I say, the pilots were validated, and over the previous two years their effectiveness was confirmed. Maple Leaf was part of that system, along with 123 other plants. When that was then extended to other plants, it had already been tested and verified in other locations, so on April 1, there was no change whatsoever to what was going on in Maple Leaf when it was instituted nationally across other jurisdictions.
On April 20th, 2009. See this statement in context.