Study: Pickering Lands, Final Report was submitted to Transport Canada in March 2010. After a "due diligence review", Transport Canada released the report to the public on July 11, 2011. The study concluded that an additional airport would be needed "but it is not expected to be required before 2027 and possibly not before 2037". The study recommended that the federal government "retain and protect the site, thereby preserving the option of building an airport, if and when required". On June 11, 2013, the federal finance minister announced revised plans for the Pickering airport lands, stating that the Government of Canada would set aside an area in the southeast, of about 3,500 hectares (8,700 acres), for a future airport that would be needed in the 2027–2037 time-frame. About 2,000 hectares (5,000 acres) in York Region would be transferred to Parks Canada, to become part of the new Rouge National Urban Park. The remaining land, approximately 2,000 hectares (4,900 acres), was earmarked for economic development. On April 1, 2015, Transport Canada transferred to Parks Canada a total of 1,911 hectares (4,722 acres) of the Federal Lands, the first tract of land to become part of the Rouge National Urban Park. Parks Canada has been working closely with tenants on that land and has made it clear that agriculture will be one of the central pillars of the new Park. On July 11, 2015, the Prime Minister announced that the federal government is transferring an additional 2,100 hectares (5,200 acres) in Pickering and Uxbridge to the Rouge National Urban Park. More than half of the farmland, streams, and natural habitat expropriated in 1972–1973 will now be permanently protected. The Prime Minister also said that the federal government intends to use the remaining lands for economic development, adding: "But let there be no doubt. Our Government will only support projects on these lands, including an airport, if they are backed by a sound business plan and if they are in the best interests of this community." On July 13, 2015, the federal Minister of Transport reaffirmed that the remaining lands were being retained for economic development, including a potential future airport, and indicated that an independent advisor will be appointed to consult with local public and private interests on potential economic opportunities on the site, including a future airport, and will report back to the government within 12 months. Meanwhile, Transport Canada will