In 1998, the Brussels-Capital government approved an ordinance concerning the assessment and improvement of air quality. The ordinance contains the following measures in the field of transport and mobility: each private or public body with more than 200 employees per site has to introduce transport planning; for events assembling over 3 000 participants an action plan to promote the use of public transport and of energy efficient and environmentally friendly means of transport must be instigated; regional public bodies and institutes with a car fleet of over 50 vehicles: within five years after the entry into force of the ordinance 20% of these vehicles have to use environmentally friendly technologies. For public transport companies under the authority of Brussels-Capital and with at least 50 vehicles, 5% of the fleet must be environmentally friendly vehicles within a period of five years. Other actions within Brussels-Capital are initiatives to limit access to the city centres, instruments for and study on transport management. IEA/IRENA Global Renewable Energy Policies and Measures Database © OECD/IEA and IRENA, [November 2020]