A number of cities have decided against implementing an LEZ. A selection of these are given below. There have been many reasons, and many factors towards the reasoning. These are outlined below.
There is an LEZ with a national framework in the Czech Republic, based largely on the German framework. So far only Prague has decided to implement an LEZ, as well as having a permit-based access regulation in Prague. One of the other Czech cities actively investigating an LEZ was Klimkovice. The low emission zone in Prague has been delayed a number of times.
There were many studies in France on LEZs, and there were feasibility studies in 8 authorities: Paris, Greater Lyon, Grenoble Alpes Métropole, Clermont, Pays d'Aix, Plaine, Nice and Bordeaux.
Norway has been considering a road-tolling-based LEZ for three cities for a number of years. The low emission zones would build on their existging road tolling schemes. Smog schemes have been in place in Oslo and Bergen since 2016, and in 2017 Oslo implemented emissions dependent road tolls. Oslo is planning a further LEZ in 2018.
Switzerland has investigated low emission zones. The Cantons (federal states) took a vote whether Swiss law should allow LEZs. Cantons like Basel and Geneva were keen to implement LEZs, other Cantons not. The vote of all the Cantons decided that LEZs should not be enabled in Swiss law.
Many UK cities have undertaken feasibility studies into low emission zones. These include Manchester, Edinburgh, Bristol, West Midlands, Glasgow, Bath, Warwick and Sheffield.
In 2017 there was a low emissions framework / law published, which allows other cities to implement low emission zones (or "Clean Air Zones", or CAZ, as they are called). There are a number of cities that are likely to implement low emission zones. See our news item.
London already has a full LEZ. Four cities outside London have implemented bus-LEZs, Brighton, Norwich, Nottingham and Oxford. See the UK country menu for the UK cities that have confirmed that they will implement a low emission zone.
Helmond decided on the basis of an impact assessment that an LEZ was not an effective measure for Helmond. There air pollution problem was not significantly due to lorry emissions. This meant that an LEZ in Helmond would have less impact.
For many years Regensburg has an LEZ as a planned measure, with the start date not yet set. The LEZ is was stated as a measure in the air quality management plan, but it was for a while not given a actively planned measure. The date for the start of the LEZ has often been delayed. The current statement is that the Regensburg will stasrt a LEZ at the beginning of 2018.