On June 2, 2003 Stockholm City Council decided to ask the Swedish government for permission to conduct a congestion tax trial. On June 16, 2004 the Swedish Parliament, the Riksdag, adopted the Congestion Charges Law, with an annex relating to the Stockholm Trial. The trial is being fi nanced by state funding. The National Road Administration, Vägverket, was given responsibility for the technical design, and the City of Stockholm was tasked by the government with responsibility for evaluating the trial and providing information about it. This brochure is a brief summary of the results of these different evaluations. It is being distributed to households within Stockholm municipality. The aim is that it will serve as a basis for discussion by everyone, both those who are in favour of a continuation of the congestion tax and those who are against.