These Regulations, which extend to England and Wales, make provision about information relating to taxis and private hire vehicles as part of the aim of securing compliance with Articles 13(1) and 23(1) of Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe.
Link: The Air Quality (Taxis and Private Hire Vehicles Database) (England and Wales) Regulations 2019
Source: Legislation .gov.uk