High Quality Content by WIKIPEDIA articles! The London congestion charge is a fee charged for some categories of motor vehicle to travel at certain times within the Congestion Charge Zone (CCZ), a traffic area in London. The charge aims to reduce congestion, and raise investment funds for London`s transport system. The zone was introduced in central London on 17 February 2003, and extended into parts of west London on 19 February 2007. Though not the first scheme of its kind in the United Kingdom, it was the largest when introduced, and it remains one of the largest in the world. Several cities around the world have referenced London`s congestion charge when considering their own schemes.