ST. PAUL (AP) -- Minnesota utility regulators have approved a revised environmental review for a proposed $2.6 billion pipeline.

The state Public Utilities Commission voted 3-1 to approve the environmental impact statement for Enbridge's Line 3 project in northern Minnesota, saying it adequately addressed the impact of a potential spill in the Lake Superior watershed.

The commissioners then voted 3-1 to reissue the project's certificate of need.

The new pipeline would replace Enbridge's Line 3, which was built in the 1960s. Enbridge says the old line can run at only half its original capacity. Environmental and tribal activists urged regulators to kill the project.

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