On 23 and 24 November 2023, the fourth EU Clean Air Forum will take place in Rotterdam Netherlands.The fourth Clean Air Forum will bring together clean air stakeholders and interested parties from across the European Union including competent authorities of the Member States at all relevant levels, the Commission, industry, civil society, and the scientific community for several days of intense dialogue on main clean air issues. Opening session starting at 10h00 CET Registration period ended on Monday 6 November 2023, 18:30 CET