The implementation of the processing mentioned in article R. 142-43 by the mayor of the municipality of the place of accommodation or, in Paris, Lyon and Marseille, by the district mayor is subject to the prior submission to the Commission nationale de l’informatique et des libertés, pursuant to IV of article 31 of law no. 78-17 of 6 January 1978, a compliance undertaking referring to this article and specifying the exact location of the automated processing, the procedures for exercising the right of access and the mayor’s specific undertaking that data security and confidentiality measures have been implemented and the procedures for the individual authorisation of municipal staff with access to the file.