Any request or observation sent to the member of the Autorité de régulation de la communication audiovisuelle et numérique designated pursuant to IV of Article 4 of Law No. 86-1067 of 30 September 1986 on freedom of communication by the addressee of a recommendation referred to in the first or second paragraph of Article L. 331-20 shall be investigated only if it includes the file number given in that recommendation.
Receipt of the request or observation shall be acknowledged by the member.
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