The UIC environmental and sustainability issues and projects are listed according to the titles of the UIC expert groups that deal with them. Each expert group has separate working programmes and milestones. The expert groups report to the UIC Environment, Energy & Sustainability (EES EES Environment, Energy and Sustainable development ) Platform. All UIC members are invited to join this platform. The name of the platform reflects how the content and focus of this platform have developed since “Environment” was introduced to the international rail agenda at UIC in the late 1980ies.