In order to optimise the use of the services provided, the systems, networks and services emerging from the Galileo and EGNOS programmes should be compatible and interoperable with one another and, insofar as possible, with other satellite navigation systems and with conventional means of radio navigation where such compatibility and interoperability is laid down in an international agreement, without prejudice to the objective of strategic autonomy.
Chun úsáid na seirbhísí a sholáthraítear a bharrfheabhsú, ba cheart go mbeadh na córais, gréasáin agus seirbhísí a thig as clár Galileo agus as clár EGNOS comhoiriúnach agus idir-inoibritheach lena chéile agus, a mhéid is féidir, le córais eile um loingseoireacht satailíte agus le gnáthmhodhanna radaloingseoireachta, sa chás ina leagfar comhoiriúnacht den sórt sin agus idir-inoibritheacht den sórt sin síos i gcomhaontú idirnáisiúnta, gan dochar do chuspóir na huathrialach straitéisí.