Legal provisions for citizens' initiatives at national level

Portugal
Constitution (7th revision, 2005)
Article 167 (Initiative in relation to laws and referenda)
1. The competence to initiate laws and referenda lies with Members of the Assembly of the Republic, parliamentary groups and the Government, and also, under the terms and conditions laid down by law, with groups of registered electors. The competence to initiate laws in relation to the autonomous regions lies with the respective Legislative Assemblies.
Article 115 (Referenda)
1. Upon a proposal submitted by the Assembly of the Republic or the Government in relation to matters that fall within their respective competences, in the cases provided for and as laid down in the Constitution and the law, the President of the Republic may decide to call upon citizens who are registered to vote in Portuguese territory to directly and bindingly pronounce themselves by referendum.
2. Referenda may also result from the submission by citizens of an initiative to the Assembly of the Republic. Such initiatives shall be submitted and considered under the terms and within the time limits laid down by law. [...]