Administrative Code of 1987
Section 10. Validity of Constitutional Amendments. -
(1) Any amendment to or revision of the Constitution proposed by Congress or a constitutional convention shall be valid when ratified by a majority of the votes cast in a plebiscite which shall be held not earlier than sixty days (60) nor later than ninety days (90) after the approval of such amendment or revision.
(2) Any amendment to or revision of the Constitution directly proposed by the people through initiative shall be valid when ratified by a majority of the votes cast in a plebiscite which shall be held not earlier than sixty days (60) nor later than ninety days (90) after the certification by the Commission on Elections of the sufficiency of the petition.