Galileo is an independent global navigation satellite system being developed by the European Commission. Galileo is intended to be a primarily civilian system. It will offer an open (free) service, a commercial service, and a public regulated service designed for security applications. Current plans are to achieve operational status around 2015.
Under a cooperative agreement signed in 2004, the United States and the European Community have designed common signals to be transmitted by both GPS and Galileo, enabling interoperability at the user level.