Law No. 12.587/2012 establishing the guidelines of the National Urban Mobility Policy

This law establishes the guidelines of the National Urban Mobility Policy in line with broad principles of sustainable development, and takes other measures.

Art 23.VII states that the federative entities may use, among other instruments for the management of the transport system and urban mobility, monitoring and control of local and greenhouse gas emissions from motorized transport modes, allowing access to certain roads to be restricted due to the criticality of pollution emission indices;