The Galileo programme includes a definition phase which has been completed, a development and validation phase until 2013, a deployment phase which was launched in 2008 and is due for completion in 2020, and an exploitation phase which should be launched progressively from 2014-15 in order to have a fully operational system in 2020.
Áirítear i gclár Galileo céim sainithe atá tugtha chun críche, céim forbartha agus bailíochtaithe go dtí 2013, céim imlonnaithe a thosaigh in 2008 agus ar cheart di a bheith críochnaithe in 2020 agus céim saothraithe ar cheart di tosú de réir a chéile ó 2014-15 chun go mbeidh an córas ar fad go hiomlán oibríochtúil in 2020.