The Energy Saving Trust Fleet Hero Awards, which honour Britain’s greenest fleets, were officially launched yesterday at the Fleet News Green Summit.

Now in their fourth year, the awards recognise achievements such as reducing business mileage and addressing the grey fleet issue. This year there are separate categories for public and private sector fleets.

Fleet operators have until August 24 to enter the awards. Applications can be completed online at www.guardian.co.uk/fleetheroes2009