A standard declaration refers to a procedure which is used when a certain number of criteria are met.
It is a declaration that must be made even if the processing of the data in question requires prior authorization, i.e. it relates to sensitive or at risk information.
The CNIL introduced this declaration in order to simplify and steamline the process for those processing data, for example how certain types of data should be filed or organized. Thus, excluding simplified declarations and specific forms relating to health, only one form is now needed without regard to the nature of the processing.
This large form must be filled out and sent back to the CNIL. No decision is given, but what it does is serve as a simple declaration and understanding of the risks by the person declaring it.