§ Mr. Chaytor
To ask the Secretary of State for the Environment, Transport and the Regions what is the total number of vehicles used by his Department and its agencies fuelled by(a) petrol, (b) diesel and 694W (c) liquid petroleum gas; and what plans he has to increase the rate of conversion of those vehicles to liquid petroleum gas. 
§ Ms Beverley Hughes
My Department does not keep a central record of vehicles used and their fuel type. Property managers are asked to take account of environmental performance when hiring or buying vehicles.
The Department has prepared guidance for Government Departments on choosing greener vehicles, which is now available on the Department's website, along with other advice, including DETR's guide to New Car Fuel Consumption and Emission figures.