The U.S.-Mexico Binational Protocol for Transfer of Unaccompanied Children

August 15, 2025

Ensuring Best Interests in U.S.–Mexico Child Reunification

Hundreds of thousands of unaccompanied children travel through Mexico each year, many seeking to reunite with parents or close relatives in the United States. Until recently, there was no formal mechanism to facilitate safe, legal reunification in a third country—even when it was in a child’s best interests. The U.S.–Mexico Binational Protocol, developed with support from UNHCR and UNICEF, changed that. Under this program, Mexican child protection authorities identify children for whom reunification in the U.S. is safest, then coordinate with U.S. counterparts for their legal transfer across the border. The process includes best interests determinations (BIDs), rapid case processing, legal and psychosocial support, and safeguards to prevent children from returning to danger. This scalable, replicable model offers a humane, rights-based solution to family separation and serves as a blueprint for cross-border child protection worldwide.

Download KIND’s Best Practice Brief

Related Resources

Supporting Family Unity for Unaccompanied and Separated Children

Whether at the U.S.–Mexico border, across Europe, or in countries of origin, KIND works to prevent family separation, reunite children with relatives, and support their healing after trauma. Our holistic approach combines legal representation, trauma-informed psychosocial care, and advocacy to strengthen child protection systems and expand access to reunification pathways.

Creating Safe, Legal Routes for Central American Children to Reunite with Family in the U.S.

The Central American Minors (CAM) Program provides a safe, in-country process for children from El Salvador, Guatemala, and Honduras to reunite with family in the United States, reducing dangerous migration and protecting children’s rights.