The Financial Post reports in its Tuesday edition that a proposed law raising foreign ownership limits in airlines and Canada's biggest railway carrier is headed back to the Senate, a move that has the mining sector speaking out. A Bloomberg dispatch to the Post reports that the federal government's legislative overhaul affects major companies like Canadian National Railway, Canadian Pacific Railway, Air Canada and WestJet Airlines. Senators changed the bill a month ago, giving shippers like farmers and mines more power in disputes with railways. Transport Minister Marc Garneau says the bill "represents historic gains for those who depend on Canada's freight rail system." The bill will change shipping rules for so-called captive shippers served by one railway, raise foreign ownership limits for airlines to 49 per cent from 25 per cent and establish new airline-passenger rights. The Mining Association of Canada -- representing Barrick Gold, Goldcorp and Teck Resources -- expressed "profound disappointment" with Mr. Garneau's response because it rejected one particular Senate amendment that would "have increased data transparency" and will leave captive shippers at the mercy of either CN or CP.