160. Should family reintegration prove impossible within an appropriate period or be deemed contrary to the child’s best interests, stable and definitive solutions, such as kafala of Islamic law or adoption, should be envisaged; failing this, other long-term options should be considered, such as foster care or appropriate residential care, including group homes and other supervised living arrangements. C. Tracing and family reintegration 161. Identifying, registering and documenting unaccompanied or separated children are priorities in any emergency and should be carried out as quickly as possible. 162. Registration activities should be conducted by or under the direct supervision of State authorities and explicitly mandated entities with responsibility for and experience in this task. 163. The confidential nature of the information collected should be respected and systems put in place for safe forwarding and storage of information. Information should only be shared among duly mandated agencies for the purpose of tracing, family reintegration and care. 164. All those engaged in tracing family members or primary legal or customary caregivers should operate within a coordinated system, using standardized forms and mutually compatible procedures, wherever possible. They should ensure that the child and others concerned would not be endangered by their actions. 165. The validity of relationships and the confirmation of the willingness of the child and family members to be reunited must be verified for every child. No action should be taken that may hinder eventual family reintegration, such as adoption, change of name, or movement to places far from the family’s likely location, until all tracing efforts have been exhausted. 166. Appropriate records of any placement of a child should be made and kept in a safe and secure manner so that reunification can be facilitated in the future. ----- 18