The evidence provided for in Article L. 243-2 must be submitted to the authority competent to receive the declaration when the worksite is declared open.
The evidence provided for in this article shall specify the amount of cover provided by each of the contracts taken out by or on behalf of the persons referred to in articles L. 241-1, L. 241-2, L. 242-1 and L. 242-2 , and the way in which these various guarantees relate to each other.
Where one or more contracts are used, to which the guarantee ceilings provided for in article R. 243-3 apply, the supporting documents must also include details of the amount of the construction cost of the work declared in advance by the project owner.
In addition, while the work is being carried out, the project owner may ask any party involved in the building process to provide evidence that it meets the obligations set out in articles L. 241-1 and L. 241-2.