The European Union Agency for Railways (ERA) is an agency of the European Union established to enhance the safety and interoperability of the rail system across Europe. It works to ensure that rail transport is efficient, sustainable, and meets high safety standards. The agency also facilitates the development of a single European railway area. ERA's responsibilities include issuing safety certificates and authorizations for railway vehicles, as well as promoting technical standards and regulations. By fostering cooperation among member states, the agency aims to improve rail services and support the transition to greener transport solutions within the EU.