Artikel 4

1. The following security classification levels of the Parties are equivalent and correspond to the security classification levels specified in their national legislation. The English equivalent is an informal translation, not part of the national laws and regulations of the Parties and should not be used to mark Classified Information.
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2. In accordance with the provisions set in its national laws and regulations, Receiving Party shall mark all the Classified Information under this Agreement that it has received from the Providing Party with the security classification that corresponds to the security classification given by the Originating Party in accordance with the scheme contained in paragraph 1 of this article.
3. The Receiving Party may alter or revoke the security classification of received Classified Information under this Agreement only upon the written consent of the Originating Party.