SNCF Class BB 27300 the number carried on the locomotive is prefixed with the number 8, to denote the unit as belonging to the Île-de-France division of SNCF. The first locomotives entered service in 2006 on suburban trains from Paris Montparnasse railway station. Current deployment sees a total of 25 locomotives operating services from Paris-Montparnasse on trains to Dreux, Mantes-la-Jolie and Rambouillet. At Montparnasse they have displaced older SNCF Class BB 8500 and BB 25500 locomotives. A further 42 locomotives operate from Paris Saint-Lazare railway station on trains to Poissy, Mantes-la-Jolie, Pontoise, Gisors, and Ermont Eaubonne. At Saint-Lazare BB 8500 and BB 17000 locomotives
SNCF "broken nose" style of electric and diesel locomotives. SNCF is recognized as a leader in eco-mobility with a commitment to become the world’s first operator to offer carbon neutral travel at no extra cost to travelers. SNCF has cut emissions on its cross-channel Paris to London route by 31% in two years by using more electricity from non-fossil fuel sources. SNCF's 39 manufacturing facilities are in the process of “going green” and 9 sites are already ISO 14000 certified. SNCF developed an interactive website to help travelers calculate the environmental impact of their travel choices. In May 2014, the company