4. Article

1. 1)) In addition to the area to which the NATO SOFA applies the present Agreement shall apply to the territory of all States Parties to the present Agreement which are not Parties to the NATO SOFA.
2. 2)) For the purposes of the present Agreement, references in the NATO SOFA to the North Atlantic Treaty area shall be deemed also to include the territories referred to in paragraph 1 of the present Article, and references to the North Atlantic Treaty shall be deemed to include the Partnership for Peace.
3. 1)) The present Agreement shall be open for signature by any State that is either a contracting Party to the NATO SOFA, or that accepts the invitation to the Partnership for Peace and subscribes to the Partnership for Peace Framework Document.
4. 2)) The present Agreement shall be subject to ratification, acceptance or approval. Instruments of ratification, acceptance or approval shall be deposited with the Government of the United of America, which shall notify all signatory States of each such deposit.
5. 3)) Thirty days after three signatory States, at least one which is a Party to the NATO SOFA and one of which has accepted the invitation to the Partnership for Peace and subscribed to the Partnership for Peace Framework Document, have deposited their instruments of ratification, acceptance or approval, the present Agreement shall enter into force in respect of those States. It shall enter into force in respect of each other signatory State thirty days after the date of deposit of its instrument.
6. (1)) The present Protocol shall be open for signature by any signatory of the Agreement.
7. (2)) The present Protocol shall be subject to ratification, acceptance or approval. Instruments of ratification, acceptance or approval shall be deposited with the Government of the United States of America, which shall notify all signatory States or each such deposit.
8. (3)) The present Protocol shall enter into force 30 days after the date of deposit of the instrument of ratification, acceptance or approval by three signatory States, at least one of which is a Party to the NATO SOFA and one of which is a State having accepted the invitation to join the Partnership for Peace and having subscribed to the Partnership for Peace Framework Document.
9. (4)) The present Protocol shall come into force in respect of each other signatory State on the date of the deposit of its instrument of ratification, acceptance or approval with the Government of the United States of America.