The original Panama Canal was built to save both time and fuel compared with going the long way round; and while the expanded canal will further lessen carbon dioxide emissions from transiting ships, a new initiative by the Panama Canal Authority (ACP) called the Environmental Premium Ranking will reward vessels that are more energy-efficient and reduce their carbon dioxide emissions. Software has been developed to calculate a vessel’s carbon dioxide emissions based on ship type, cargo volume and route. Vessels will be able to improve their position by means of a Customer Ranking System, based on indicators such as the Energy Efficiency Design Index (EEDI), the Environmental Ship Index and use of LNG fuel. The best-ranked vessels will get priority booking, allowing them to effectively jump the queue for transits. The new incentive system will begin on 1 January 2017.