In July, the International Maritime Organization's (IMO’s) Marine Environment Protection Committee (MEPC) introduced the first-ever mandatory energy efficiency measures for an international transport sector to reduce greenhouse gas (GHG) emissions.

The amendments to MARPOL Annex VI regulations on energy efficiency include the EEDI, which applies to new ships built after 2013. Over the past four years, IMO has worked with a broad range of industry stakeholders to develop the framework for the EEDI.

The EEDI has the scope to develop over time and has received the widespread support of governments, industry organisations, owners, operators and the public.

It requires a minimum energy efficiency level for new vessels entering the world fleet through technical and design-based measures, such as more efficient engines and propulsion systems, improved hull designs and larger ships, which transport more cargo using proportionally less fuel.

The EEDI is not applicable to all ship types or propulsion systems (such as hybrid or diesel electric engines), however, the IMO has indicated that the MEPC will consider ship types not covered by the EEDI at future sessions, focusing on the most carbon-intensive ship types first.

While the implementation of these measures will lead to significant reductions of GHG emissions from ships, concerns have recently been raised by organisations such as INTERTANKO over the four-year waiver provision included in the newly adopted regulations. This provision allows flag states to waive the 2013 implementation date until 2017.

“In our view, there should be a level playing field. The EEDI requirements should apply equally to all new ships that are built between 2013 and 2017. Carving out exceptions undermines the spirit and intent of the initiative,” said Joe Angelo, INTERTANKO’s Managing Director.

The Clean Shipping Coalition also warned that the EEDI is only the first step in what needs to be a far more expansive effort to address shipping’s climate impacts.

It said that the regulation will only guarantee emissions reductions after 2019, as a handful of developing states led by China and Brazil secured a delay in implementation claiming the need for more time to acquire advanced technologies.