The director of each health care institution referred to in Article L. 3222-1 shall enter into agreements with :
1° The representative of the State in the département or, in Paris, the Préfet de Police ;
2° The local authorities and their competent groupings; and
3° The Director General of the Regional Health Agency.
The agreements mentioned in the first paragraph of this article set out the terms and conditions under which the signatories work together to ensure the follow-up and promote the social reintegration of people undergoing psychiatric care in the form mentioned in 2° of I of article L. 3211-2-1. These agreements also set out the conditions under which the decisions by which the director of the host establishment or the State representative modifies the form of care for these people by proceeding with their full hospitalisation in application of article L. 3212-4 or III of article L. 3213-3 respectively, are implemented.