The objective of these Guidelines is to provide the users
with assistance in the process of establishing a mechanism to achieve
the limitation or reduction of greenhouse gas emissions from ships
in operation.
These Guidelines present the concept of an indicator for the
energy efficiency of a ship in operation, as an expression of efficiency
expressed in the form of CO2 emitted per unit of transport
work. The Guidelines are intended to provide an example of a calculation
method which could be used as an objective, performance-based approach
to monitoring the efficiency of a ship’s operation.
These
Guidelines are recommendatory in nature and present a possible use
of an operational indicator. However, shipowners, ship operators and
parties concerned are invited to implement either these Guidelines
or an equivalent method in their environmental management systems
and consider adoption of the principles herein when developing plans
for performance monitoring.