No, according to the data that I have, the most important acts as far as charges are concerned are the Wild Animal and Plant Protection and Regulation of International and Interprovincial Trade Act and the Migratory Birds Convention Act, 1994. Of the 502 cases I mentioned awhile ago, 136 are related to the first act, 246 to the second one, and 81 to CEPA. That may give you an idea. The other two account for the larger share of the volume.
On March 26th, 2009. See this statement in context.