During last February a very interesting article from Edmund Hughes, Technical Officer, Marine Environment Division, IMO was published in IMO’s website, explaining the new regulations aimed at improving the energy efficiency of international shipping, which entered into force on 1 January 2013 and make mandatory the Energy Efficiency Design Index (EEDI), for new ships, and the Ship Energy Efficiency Management Plan (SEEMP) for all ships. Other amendments to MARPOL Annex VI add new definitions and the requirements for survey and certification, including the format for the International Energy Efficiency Certificate. The regulations apply to all ships of 400 gross tonnage and above. However, under regulation 19, the Administration may waive the requirements for new ships up to a maximum of 4 years.