On May 3, the State Department announced the comment period for a proposal to double the flow of the Enbridge Inc. pipeline, Line 67. The pipeline, which was originally approved by a presidential permit in August 2009, runs from Alberta, Canada to Superior, WI. Enbridge proposed in November 2012 to double the flow of oil sands from the current level of 450,000 barrels a day to 800,000 barrels per day. The pipeline has a capacity to carry 880,000 barrels per day. While no additional pipeline will be built, new pumps and other upgrades will need to be made, particularly in Minnesota. The comment period will be open through May 13.