This study will follow up with the EHS programs and child care providers (including child care center directors and family child care providers) who participated in the National Descriptive Study of Early Head Start-Child Care Partnerships to understand whether and how partnerships have been sustained or have dissolved, and which features of partnerships support or impede sustainability. Data collection will take place in 2022 and will include surveys of those who participated in 2016 as well as semi-structured interviews with a purposive sample of child care providers whose partnerships have dissolved and have been sustained since 2016. (author abstract)