The city of Hamilton's Public Works Department was awarded a silver rating for excellence in "greening" its vehicle fleets under a new Canadian program known as E3 Fleet. The Fraser Basin Council, which oversees the E3 Fleet program, recently made the announcement. Between 2005 and 2006, Hamilton, British Columbia fleets increased fuel efficiency by 5 percent for every kilometer traveled, and decreased greenhouse gas (GHG) emissions by 2 percent per kilometer. The city's E3 Fleet silver rating was based on these accomplishments and best management practices, such as the city adopting a green fleet plan, an idling reduction program, fuel data management and a green vehicle purchasing policy. Since transportation accounts for 40 percent of greenhouse gas emissions, the Fraser Basin Council decided to develop a review and rating program for this sector, similar to ratings that already exist for green buildings.