This directory serves as a comprehensive reference tool designed to connect professionals, caregivers, and individuals with global resources for the support and treatment of mental retardation. The United States Department of Health and Human Services compiled this data to standardize access to international organizations, clinical facilities, and advocacy groups. The framework organizes information geographically and by service type to facilitate efficient navigation of complex support systems.

Experts recognize this volume as a foundational administrative resource for historical research and international networking in the field of disability services. Readers frequently note the clinical utility of the directory for mapping the global landscape of support infrastructure during the era of its compilation.