To obtain the approval number of the training, it is necessary to file an application with the prefecture. However, there is no concrete request for a training authorization number. The filing of the declaration of activity corresponds to an application for approval. His professional experience should be taken into account before starting the establishment of the training institution. The question is: “Do I have the technical and personal skills to lead a training action?” “Experience as a trainer” is acquired through any training allowing a structured and given transmission of knowledge: this explanatory formality must be carried out within three months from the beginning of the first training contract. . . .