Article 45a 3.

Where a provider of a web-browser takes precautionary measures pursuant to paragraph 2, the provider of the web-browser shall notify its concerns in writing, without undue delay, together with a description of the measures taken to mitigate those concerns, to the Commission, the competent supervisory body, the entity to whom the certificate was issued and to the qualified trust service provider that issued that certificate or set of certificates. Upon receipt of such a notification, the competent supervisory body shall issue an acknowledgement of receipt to the provider of the web-browser in question.