In the continuation of the actions implemented in favour of the environment, the Management Board of the Grand Port Maritime du Havre has decided to reward, in 2012, the shipping companies which operate clean ships in Le Havre. From January 1st, 2012, the possibility will be provided to the 10 cleanest container or Ro-Ro shipping lines, as regards the reduction of their ship emissions in the air, to be granted an « environmental reward » making it possible for them to reduce their port dues on ships by up to 10 % maximum, according to the conditions set up in Le Havre. Supporting the ESI (Environmental Ship Index) promoting « clean shipping » was obvious for the Port of Le Havre.