questionText: To ask the Secretary of State for Transport, whether his Department as made an assessment of the potential effect of the installation of clean air zone signs across the City of Manchester on road users in the context of the Mayor of Manchester's decision 
answerText: Responsibility for the signage rests with the Greater Manchester authorities. Decisions as to the future of the signs will be made as part of the review of Greater Manchester’s plans to address the serious issue of nitrogen dioxide pollution.
heading: Clean Air Zones: Greater Manchester