Paperwork for apartment sale

I am about to complete the sale of my apartment and the notaire has asked for the following: ' ...l’attestation de conformité. C’est une attestation délivrée au bailleur pour attester que le logement concerné mis en location répond aux obligations de sécurité, de salubrité et d’équipement'. I never provided such a document. Where do I get it from? I have already provided documentation concerning the electricity and state of the building which I got from my Syndic. Thanks for advising.