For countries to fulfill their commitments under the Convention on the Rights of Persons with Disabilities as well as to inform and support the monitoring of future international development goals, there is an urgent need for countries to strengthen their capacity to collect, analyze, understand, use and disseminate data on children with disabilities in a manner that is accurate and comparable across different settings, countries, and populations. To help strengthen local capacities, UNICEF and the Washington Group on Disability Statistics have developed a training package on the measurement of child disability.