This document describes the development of a standardized toolkit for evaluating the impact of HIV/AIDS programming on children in Africa funded by PEPFAR (President's Emergency Plan for AIDS Relief). It details the process of identifying core indicators, developing survey tools for children and caregivers, piloting the tools, and finalizing them along with implementation guidance. The goal is to produce comparable data across interventions to inform programs and enable evidence-based decision making. The standardized toolkit includes questionnaires, manuals, analytical guidance, and other resources to evaluate PEPFAR's progress in caring for orphans and vulnerable children.