Any mode of becoming a national, i.e. by birth or at any time after birth, automatic or non-automatic, based on attribution, declaration, option or application.
Source: European Convention on Nationality. see also
The body of common rights and obligations that is binding on all EU States. It is constantly evolving and comprises: the content, principles and political objectives of the Treaties, legislation adopted pursuant to the Treaties and the case law of the Court of Justice declarations and resolutions adopted by the Union, instruments under the Common Foreign and Security Policy,instruments under Justice and Home Affairs,international agreements concluded by the EU and those entered into by EU States among themselves within the sphere of the Union's activities
Act of secondary law (regulation, directive or decision) laying down the objectives and conditions for budget implementation.
A consultative forum of more than fifty Governments from the wider European region and ten international organisations, which aims to promote good governance in the field of migration, a harmonised approach in dealing with irregular migration challenges and support for the transfer and common understanding of migration concepts and policies.