Bill C-31 passed last Thursday and with it comes new rules for businesses dealing in Bitcoin.
I've written a guest post on the Decentral blog that explains what the new rules are, when they'll take effect and what might happen: http://decentralca.tumblr.com/post/89657114028/what-you-need-to-know-about-the-new-bitcoin-law.
One key point that others have missed: this law does not come into force immediately.