The Seimas shall ratify or denounce the following international treaties of the Republic of Lithuania:
1) on the alteration of the boundaries of the State of the Republic of Lithuania;
2) on political co-operation with foreign states; mutual assistance treaties; as well as treaties of a defensive nature related to the defence of the State;
3) on the renunciation of the use of force or threatening by force; as well as peace treaties;
4) on the presence and status of the armed forces of the Republic of Lithuania on the territories of foreign states;
5) on the participation of the Republic of Lithuania in universal international organisations and regional international organisations;
6) multilateral or long-term economic treaties.
Laws, as well as international treaties, may also provide for other cases when the Seimas ratifies international treaties of the Republic of Lithuania.
International treaties ratified by the Seimas of the Republic of Lithuania shall be a constituent part of the legal system of the Republic of Lithuania.