OECD Convention : Article 13 : Signature and Accession

Until its entry into force, this Convention shall be open for signature by OECD members and by non-members which have been invited to become full participants in its Working Group on Bribery in International Business Transactions.
Subsequent to its entry into force, this Convention shall be open to accession by any non-signatory which is a member of the OECD or has become a full participant in the Working Group on Bribery in International Business Transactions or any successor to its functions. For each such non-signatory, the Convention shall enter into force on the sixtieth day following the date of deposit of its instrument of accession.