Vienna Airport originally projected that it would need a third runway by 2012, or 2016 at the latest, in the event of cooperation with nearby Bratislava Airport. It currently projects that a third runway will be necessary by 2025, however, environmental organizations and some local communities oppose construction. These groups have attacked the decision of Lower Austria (the state in which the airport is located) to move ahead with the first phase of construction; verdict from the administrative court that has taken up the lawsuit was expected later in 2015. As of September 2016, there were ongoing public protests while as no legal decision had been made. On 28 March 2018, the Austrian Federal Administrative Court ruled in favour of a third runway, a decision that may be appealed by opponents within six weeks.