A mandatory referendum generally relates to constitutional revisions. In some states, any constitutional revision is submitted to a mandatory referendum, with the result that the people itself becomes the constitution-making body (Andorra, Armenia, Azerbaijan, Ireland, Switzerland – where a majority of the people and of the cantons is required –, Denmark where a precondition for a constitutional revision is the holding of general elections). In other states (Austria, Spain), only total revisions are submitted to a mandatory referendum. A mandatory referendum may also be restricted to changes to certain provisions or rules: basic constitutional provisions (Estonia – the chapters of the Constitution on general provisions and the revision of the Constitution as well as the law complementing the Constitution, on accession to the European Union –, Latvia – democratic and sovereign nature of the state, territory, official language and flag, election of the Parliament by universal, equal, direct, secret and proportional suffrage, a rule providing for a referendum to be called for the revision of previous provisions -, Lithuania – an independent and democratic republic, chapters on the state and revision of the constitution, constitutional law on the country’s non-alignment with post-Soviet alliances -); three provisions relating to constitutional revisions and the duration of Parliament (Malta).