The ACEA Board of Directors is composed of the CEOs of its member companies. Additionally, a Commercial Vehicle Board of Directors addresses the specific issues that face the commercial vehicle manufacturers that ACEA represents: DAF Trucks, Daimler Trucks, Iveco, MAN Truck & Bus, Scania, Volkswagen Commercial Vehicles and Volvo Group. The day-to-day work of the ACEA secretariat is overseen by the Secretary General, who ensures that the Board of Directors’ priorities are addressed. Technical expertise and advisory input come from working groups on topics as diverse as emissions, road and vehicle safety, general transport policy and regulatory compliance. These specialist working groups are made up of experts from the member companies, and are chaired by ACEA staff.