We make every attempt to ensure that the data on low emission zones and tolling schemes presented on our website are complete.
This information does not attempt to be comprehensive or cover every urban area, but cover as many cities and towns as are possible. We have checked the larger cities, for example those over 500,000 population, and many others that might be likely to have schemes.
The number of other schemes included will increase over time. In looking for schemes, we focus on the larger cities, touristic areas and areas we know have schemes.