Transport for LondonRoad signs
Skip to navigationTraffic signs make it clear when you are approaching or entering the Low Emission Zone (LEZ).
Entering the LEZ
Signs are positioned at, or near, all zone entry points. There are no barriers or tollbooths.
Within the LEZ
On main roads, you will see signs to remind you that you are in the zone and that the scheme is enforced by cameras.
Approaching the LEZ
On major approaches to the M25, advance warning signs indicate the position of the LEZ boundary, allowing you to choose to divert onto the M25.
Advance information
Closer to the boundary itself, some approaches have additional advance signs to indicate a route you may take to avoid entering the zone.
