1. This Protocol shall be open for signature by the member States of the Council of Europe having signed or acceded to the
Convention which may express their consent to be bound by:
a. signature without reservation as to ratification, acceptance or approval; or
b. signature subject to ratification, acceptance of approval, followed by ratification, acceptance or approval.
2. No member State of the Council of Europe shall sign without reservation as to ratification, acceptance or approval, or deposit an instrument of ratification, acceptance or approval, unless it is already or becomes simultaneously Party to the
Convention.
3. Any State not a member of the Council of Europe which has acceded to the
Convention may also accede to this Protocol.
4. Instruments of ratification, acceptance, approval or accession shall be deposited with the Secretary General of the Council of Europe.