The Federal Energy Regulatory Commission is reviewing Bradwood Landing's June application for an LNG terminal and related pipeline.
Stakeholders in the case can file with FERC as intervenors, giving them the ability to view documents, provide input and appeal resulting decisions, until Thursday.
At the same time, the U.S. Coast Guard is examining the proposed facility's Waterway Suitability Assessment, an evaluation of whether and how the Columbia River can support LNG-tanker traffic.
The Coast Guard will issue a recommendation to the federal commission for use in its draft Environmental Impact Statement, expected in mid-October, which would then be subject to public comments.
The final impact statement would be released next February, and an order issued in April 2007 - so long as the appropriate state permits were granted.
Following FERC approval or denial, parties can appeal the final decision.