1987 CONSTITUTION ARTICLE XVII AMENDMENTS OR REVISIONS
Any amendment to, or revision of, this Constitution may be proposed by: The Congress, upon a vote of three-fourths of all its Members; Any amendment to, or revision of, this Constitution under Section 1 hereof shall be valid when ratified by a majority of the votes cast in a plebiscite which shall be held not earlier than sixty days nor later than ninety days after the approval of such amendment or revision. A constitutional convention. The Congress may, by a vote of two-thirds of all its Members , call a constitutional convention, or by a majority vote of all its Members , submit to the electorate (PLEBISCITE) the question of calling such a convention. Initiative (Amendments only) Amendments to this Constitution may likewise be directly proposed by the people through initiative upon a petition of at least twelve per centum of the total number of registered voters, of which every legislative district must be represented by at least three per centum of the ...