VANCOUVER -- Twelve years after Enbridge announced preliminary plans for an ambitious pipeline, the federal government is set to make a final decision on the Northern Gateway pipeline. Here’s the timeline of the major events:

March 6, 2002: Calgary-based Enbridge announces  preliminary plans for a pipeline linking the Alberta oilsands to the  West Coast.

April 14, 2005: The company announces a deal with PetroChina  Co. to transport oil from Alberta to the B.C. coast for export. The  pipeline is expected to be in operation in 2010.

Nov. 1, 2006: With the National Energy Board process already  underway, Enbridge announces it will delay Northern Gateway and  focus on expanding pipelines to U.S. market.

March 23, 2010: Coastal First Nations declares a ban on oil  supertankers in waters off the northern coast of B.C. It is the  first aboriginal ban on the project.

May 27, 2010: Enbridge files its application to the National  Energy Board to build the Northern Gateway pipeline and tanker  terminal.

Sept. 9, 2010: The panel determines the company has submitted  enough information for the project to proceed to public hearings.

Jan. 9, 2012: Then-natural resources minister Joe Oliver issues  an open letter branding oil pipeline opponents "radicals" who are  attempting to "hijack" the hearing process with funds from  "foreign special interest groups."

Jan. 10, 2012: Joint review panel begins public hearings,  spending 18 months travelling throughout B.C. and Alberta.

March and April 2012: Federal government announces changes to  Navigable Waters Act and Canadian Environmental Assessment Act.  Changes include giving cabinet final decision on projects rather  than regulators.

July 11, 2012: The U.S. National Transportation Safety Board  releases a damning report on a July 2010 spill of 3.3 million litres  of diluted bitumen from an Enbridge pipeline into Kalamazoo River,  likening the cleanup to Keystone Kops.

July 27, 2012: B.C. Premier Christy Clark announces her  government will not support Northern Gateway or any other oil  pipeline project unless it meets five conditions, including a "fair  share" of revenues for the province.

March 18, 2013: Natural Resources Minister Joe Oliver announces  first of several changes to marine safety rules for oil tankers.  Several measures will also be announced for pipeline liability on  land.

May 31, 2013: B.C. government lawyers tell the federal review  panel that the province does not support the pipeline project as  proposed.

June 24, 2013: Federal review hearings come to a close.

Nov. 5, 2013: The B.C. government backs down on  revenue-sharing, saying a share of Alberta's revenues from heavy oil  pipelines is no longer part of negotiations.

Dec. 5, 2013: Vancouver lawyer Doug Eyford issues a  government-commissioned report saying Ottawa must build trust with  First Nations.

Dec. 19, 2013: Federal joint review panel issues report  recommending approval of Northern Gateway project, subject to 209  conditions.

Jan. 17, 2014: First of 10 applications filed in Federal Court  and the Federal Appeal Court by environmental and First Nations  groups seeking judicial review of panel recommendation to approve  project.

April 13, 2014: Residents of Kitimat, site of the proposed  marine terminal, vote against Northern Gateway in non-binding  municipal plebiscite with a vote of 58.4 per cent opposed and 41.6  per cent in favour.

May 13, 2014: Transport Minister Lisa Raitt announces new rules  for marine spill response.

May 14, 2014: Natural Resources Minister Greg Rickford  announces more new rules for pipeline safety.

May 27, 2014: Rickford announces Ottawa will open a major  projects management office in B.C. to work with First Nations on  energy projects.

June 17, 2014: Federal government expected to announce its  decision.