During the IAPH World Ports Conference held in Busan, Korea in May 2011, IAPH agreed upon a new WPCI-project; LNG-fuelled vessels. The goal of this new project theme is to develop guidelines and/or assess the possible impact at ports with regard to infrastructure, safety requirements for bunkering and the legal aspects of liquefied natural gas (LNG) as an alternative fuel to conventional fuels for ships.
The Port of Antwerp and the Port of Los Angeles announced their intention to offer incentives to clean ships under the Environmental Ship Indexing (ESI) program during the IAPH World Ports Conference in Busan, Korea in May 2011. On July 1, 2011, the Port of Antwerp became the 4th port to offer incentives through this program, joining the Ports of Amsterdam, Rotterdam, and Oslo.
Fifty-nine of the world's key ports have come together in a commitment to reduce their greenhouse gas emissions.