The National Insurance (Germany) Order 1961

Article 1

(1) The said Convention shall apply to Land Berlin, unless the Government of the Federal Republic notifies the Government of the United Kingdom to the contrary within three months after the entry into force of the Convention.

(2) For the purpose of applying the Convention, any reference in it to the territory of the Federal Republic shall be deemed to include a reference to the territory of Land Berlin, and any reference m it to the legislation of the Federal Republic shall be deemed to include a reference to the legislation of Land Berlin.