The provision “The State of Lithuania shall be an independent democratic republic” of Article 1 of the Constitution may be altered only by referendum if not less than 3/4 of the citizens of Lithuania with the electoral right vote in favour thereof.
The provisions of the First Chapter “The State of Lithuania” and the Fourteenth Chapter “The Alteration of the Constitution” may be altered only by referendum.
Amendments to the Constitution concerning other chapters of the Constitution must be considered and voted at the Seimas twice. There must be a break of not less than three months between the votes. A draft law on the alteration of the Constitution shall be deemed adopted by the Seimas if, during each of the votes, not less than 2/3 of all the Members of the Seimas vote in favour thereof.
A failed amendment to the Constitution may be submitted to the Seimas for reconsideration not earlier than after one year.