The policy marker on inclusion and empowerment of persons with disabilities is a statistical tool of the OECD Creditor Reporting System (CRS). The policy marker was introduced to allow data providers to identify and report th activitiese related to disability inclusion, increasing the attention on this topic and the transparency on the financing flows dedicated to it. The DAC Working Party on Development Finance Statistics (WP-STAT) approved the disability marker in 2018, with the first data collected in 2019 on 2018 activities. The policy marker is based on the same basic functioning principles as other CRS policy markers, which are defined in the Statistical Directives. This handbook, prepared by the Secretariat in collaboration with governmental and independent experts, aims to facilitate reporting and interpretation of disability- related activities and resulting aggregated data. This handbook is a guidance document and does not substitute the texts approved by the WP-STAT.