Low Emission Zones

The Scottish Government and Transport Scotland have a clear vision for Scotland’s air quality to be the best in Europe. However, air quality remains a public health issue in certain locations, and particularly for those existing respiratory and cardiovascular conditions.

The national LEZ website, launched in October 2018, hosts official information on low emission zones to support businesses and the public in preparing for their introduction.

Low emission zones (LEZs) to improve air quality are to be introduced across Glasgow, Edinburgh, Dundee and Aberdeen between February 2022 and May 2022 and then into all other Air Quality Management Areas by 2023 where the National Low Emission Framework (NLEF) appraisals show this is the correct mitigation.

Low emission zones set an environmental limit on certain road spaces, allowing access to only the cleanest vehicles and can help to transform towns and cities into cleaner, healthier places to live, work and visit. The development of these zones are one part of a range of actions that will help make our transport system cleaner, greener and healthier. 

Scotland’s first low emission zone, which only applies to buses was introduced in Glasgow at the end of 2018.

Find out more at www.lowemissionzones.scot.

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Impact assessments

Impact assessments have been independently undertaken by Jacobs as part of the development of the LEZ regulations. They're available below, from the related publications section.

Emissions Testing of Two Auxiliary Transport Refrigeration Units

As part of a Ministerial commitment made in the Clean Air for Scotland 2 strategy published July 2021 to explore emissions from Non-Road Mobile Machinery, we commissioned a piece of research to be carried out by their consultant specialist Zemo. This report presents results from measuring emissions of two auxiliary Transport Refrigeration Units (auxTRUs). The tests were carried out in a temperature controlled environment where data such as; fuel consumption (whereby CO2 emissions can be computed), Nitrogen Oxides (NOx), particulate mass, particulate number as well as internal and external temperature were measured and analysed.