There are a lot of camera booms appearing on edges of greater london roads. On asking around been told they are for the new congestion charge which will cover the whole of greater london and charges based on the exhaust emissions of the vehicle. All sounds very expensive anyone heard about this or is it a bad rumor doing the rounds.
Only for commercial vehicles, and then only if they don't meet the emission standards, as fourm member has pointed out. Fleet operators will avoid the charges because their vehicles will comply, as will most vehicles.