The European Environment Agency (EEA) provides information to support environmental policy in Europe. It works through a network of organizations called Eionet that includes National Focal Points and European Topic Centres. One topic centre focuses on noise and advises the EEA and EU organizations on noise-related issues. This includes implementing the Environmental Noise Directive, developing common noise assessment methods, and publishing reports on recommended noise guidelines and health impacts of road traffic noise in Europe. The EEA also collaborates with the EPA Network, an informal group of environmental agencies, to share experiences and work towards harmonization of noise monitoring, reduction measures, and limit values across Europe.