The registered letter with acknowledgment of receipt (LRAR) is of legal importance. First of all, it constitutes indisputable proof of both the sending and the receipt of a document, which is evidenced by the acknowledgement of receipt signed by the addressee, which is crucial in contentious or administrative contexts.
What is a lettre recommandée avec accusé de réception? A lettre recommandé refers to registered post or a signed-for delivery in France, while a lettre recommandée avec Accusé de Réception is a signed-for delivery with legal proof of posting. You receive a receipt giving the date and time of posting.