The challenge is made by petition delivered or addressed to the clerk of the court by registered letter with acknowledgement of receipt. It shall contain the information prescribed by articles 54 and 57 of the Code of Civil Procedure.
On pain of nullity, the application must be accompanied either by a copy of the decision of the Director General of Employment or, in the event of an implicit rejection decision, by the appeal provided for in article R. 2122-21 and the acknowledgement of receipt or the acknowledgement of receipt. Where the dispute concerns the situation of a person other than the applicant, the request shall mention, on pain of nullity, the surname and forenames of the person concerned as well as the name and address of his employer.
The Director General of Labour, informed by any means by the court registry of this challenge, immediately sends the court the address of the person concerned when this person is not the author of the appeal. According to the same procedure, in the event of an implicit rejection decision, the Director General of Labour will, at the request of the court, forward any useful information enabling the merits of the challenge to be assessed.