Article V of the Philippine Constitution outlines the right to suffrage for qualified citizens, stating that all Filipinos aged at least 18, who have resided in the country for one year, are eligible to vote without any literacy or property requirements. The article also specifies processes for secure voting, absentee voting, and measures for disabled and illiterate voters. Disqualifications for voting include individuals sentenced to imprisonment of one year or more, those convicted of disloyalty crimes, and mentally incompetent persons.