Total posts : 45366
The one big difference between Canada and the U.S. is that you have to take the CRTC (Canada Radio & Telecommunications Commission) into consideration. They regulate all radio broadcasting in Canada. And there are different regulations from Industry Canada for broadcast applications coming from the BETS-1 publication – on AM, 250 uv/m @ 30 meters (much less than 100 mw). FM is 100 uv/m @ 30 meters (about 1 mw).
Luckily, the CRTC has a broadcast exemption for BETS-1 compliant operators. If you do not meet BETS-1 requirements, then you need both an Industry Canada and CRTC license to be legal.
Copyright law is different in Canada as well – check out the http://www.socan.ca website.