For the application of article L. 423-23, foreign nationals who invoke the protection due to their right to respect for private and family life in France must provide any justification that makes it possible to assess:
1° The reality and stability of their actual personal and family ties in France;
2° Justification of their family ties in their country of origin;
3° Justification of their living conditions in France;
4° Justification of their integration into French society assessed in particular with regard to their knowledge of the values of the Republic.