TILMA will effectively erase the border between B.C. and Alberta and, when it comes into effect next spring, will be what some economists call the most important free trade agreement in Canada since NAFTA. It's a major breakthrough in a problem that has plagued Canada since Confederation -- interprovincial trade barriers. While difficult to quantify, by some estimates these trade barriers cost Canada about one per cent of its GDP, or $11 billion, a year....Interesting article. Hopefully, this will start the ball rolling in other Provinces.