On October 3, 1990, the German Democratic Republic acceded to the Federal Republic of Germany. As a consequence, the German Democratic Republic has ceased to exist. In a message of the same day addressed to Heads of State and Government, the Federal Chancellor of the Federal Republic of Germany stated: "Now that German unity has been established, we shall discuss with the contracting parties concerned the international treaties of the German Democratic Republic with a view to regulating their continued application, adjustment or expiry, taking into account protection of confidence, the interests of the states concerned and the contractual obligations of the Federal Republic of Germany, as well as the principles of a free, democratic basic order governed by the rule of law, and respecting the competence of the European Union". The former German Democratic Republic had adhered to the Convention on December 4, 1974.
Declaration made upon ratification:
The International Plant Protection Convention "... shall also extend to the Land Berlin as from the same date on which it will come into force in respect of the Federal Republic of Germany."