The lAEG-SDGs will carry out major reviews of the indicator framework in 2019 and 2024 for approval at commission sessions in 2020 and 2025. The UNESCO Institute for Statistics (UIS) is the sole custodian agency for eight indicators and collaborates with the International Telecommunication Union (ITU) for the target 4.4 indicator on information and communications technology. The SDG 4 monitoring framework thus consists of 43 indicators.