People whose situation matches one of the aforementioned and can therefore be exempt must carry, when outdoors, written proof to justify that exemption.
 To be used by self-employed workers, when they cannot get a travel document from their employer.
 Including the acquisition of free commodities (food distribution, etc.) and trips related to the receipt of social benefits and cash withdrawals.
The source code of this service is available on GitHub.
Ministry of the Interior - DNUM - SDIT